Propeller structure convenient to assemble

Abstract

The utility model relates to the technical field of propeller structures, and discloses a propeller structure convenient to assemble, which comprises an upper-layer connecting part sleeved on an inner shaft body, the upper-layer connecting part is longitudinally and movably connected with the inner shaft body, two sides of the upper-layer connecting part are respectively connected with detachable upper-layer blades, an upper-layer balance rod is arranged on the upper-layer blades, and a lower-layer balance rod is arranged on the lower-layer blades. The upper-layer balance rod and the upper-layer blade are integrally formed; compared with the prior art, according to the propeller structure convenient to assemble, the upper-layer blades and the upper-layer balance rods are integrally formed, after the upper-layer connecting part is assembled on the inner shaft body, the two upper-layer blades can be directly connected to the upper-layer connecting part respectively, and the two balance rods are assembled on the upper-layer connecting part, so that the propeller structure convenient to assemble is convenient to assemble; and the assembly efficiency is greatly improved.

Description

Technical Field

[0001] The utility model patent relates to the technical field of propeller structures, and specifically, to a propeller structure that is easy to assemble. Background Art

[0002] 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.

[0003] 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.

[0004] In the prior art, the propeller structure is too complicated and difficult to assemble. It requires multiple steps to complete the entire assembly process, resulting in low assembly efficiency. Utility Model Content

[0005] The utility model aims to provide a propeller structure that is easy to assemble, aiming to solve the problem of the propeller structure being difficult to assemble in the prior art.

[0006] The utility model is implemented in this way. A propeller structure that is easy to assemble includes an upper connecting part that is sleeved on an inner shaft body. The upper connecting part is longitudinally movably connected to the inner shaft body. Removable upper blades are respectively connected to both sides of the upper connecting part. An upper balance rod is provided on the upper blades. The upper balance rod and the upper blades are integrally formed.

[0007] Furthermore, the inner end of the upper blade is butted against the inner end of the upper balance pole to form an upper end head detachably connected to the upper connection part, and the outer end of the upper blade is offset from the outer end of the upper balance pole.

[0008] Furthermore, the upper terminal is snap-connected with the upper connecting portion.

[0009] Furthermore, the upper terminal is butted against the upper connecting portion and then snap-connected.

[0010] Furthermore, an upper slot is provided on the outer side of the upper connecting portion, and the upper end head is inserted into the upper slot and is snap-connected with the upper connecting 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, an outer shaft body is sleeved on the inner shaft body and rotates in the opposite direction to the inner shaft body. A lower connecting portion is provided on the outer shaft body, and detachable lower blades are respectively connected to both sides of the lower connecting portion.

[0014] Furthermore, an outer shaft sleeve is sleeved on the outer shaft body, the lower connecting part is longitudinally movably connected to the outer sleeve, a lower balance rod is provided on the lower blades, and the lower balance rod and the lower blades are integrally formed; the inner end of the lower blade is butt-jointed with the inner end of the lower balance rod to form a lower end head detachably connected to the lower connecting part, and the outer end of the lower blade is offset from the outer end of the lower balance rod.

[0015] 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.

[0016] Compared with the prior art, the utility model provides a propeller structure that is easy to assemble, in which the upper blades and the upper balance rod are integrally formed. After the upper connecting part is assembled on the inner shaft body, the two upper blades can be directly connected to the upper connecting part respectively, and the two balance rods are also assembled on the upper connecting part accordingly, which facilitates assembly and greatly improves assembly efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a three-dimensional schematic diagram of the inner shaft sleeve provided by the utility model;

[0018] Figure 2 It is a front view schematic diagram of the upper connection part provided by the utility model;

[0019] Figure 3 It is a cross-sectional schematic diagram of the connection between the upper terminal and the upper connecting part provided by the utility model;

[0020] Figure 4 It is a cross-sectional schematic diagram of the connection between the outer shaft sleeve and the lower connecting part provided by the utility model;

[0021] Figure 5 It is a front view schematic diagram of the upper blades and the upper balance rod provided by the utility model being integrally formed. 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 1-5 As shown, it is a preferred embodiment provided by the utility model.

[0026] The propeller structure provided in this embodiment and which is easy to assemble can be used in flying toys. The propeller structure rotates at high speed in the air, and the air generates thrust to drive the flying toy to fly in the air.

[0027] The propeller structure which is easy to assemble includes an upper connecting part 300 which is sleeved on an inner shaft body. The upper connecting part 300 is longitudinally movably connected to the inner shaft body. Removable upper blades 600 are respectively connected to both sides of the upper connecting part 300. An upper balancing rod 601 is provided on the upper blades 600. The upper balancing rod 601 and the upper blades 600 are integrally formed.

[0028] The one-piece molding here refers to being manufactured in one piece through a mold, etc., without the need for independent assembly, etc. The upper balance bar 601 is a rod-shaped object with a counterweight at the end. During the rotation of the upper blades 600, the upper balance bar 601 rotates in the same direction as the upper blades 600, and has the axial stability and precession characteristics unique to a gyroscope. During the movement of the rotation center, the spatial orientation of the rotation axis remains unchanged and the predetermined movement direction of the rotation center remains unchanged. The upper balance bar 601 can prevent the flying toy from large displacements, thereby playing a certain role in wind resistance. At the same time, it can also prevent the flying toy from small yaws, allowing the flying toy to move in the horizontal direction.

[0029] The upper connecting part 300 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 blades 600 and the upper balance rod 601 to rotate. In order to better adjust the horizontal flight, after the upper blades 600 and the upper balance rod 601 are connected to the inner shaft body, they can achieve a certain angle of swing in the longitudinal direction, so that the upper blades 600 can automatically adjust the up and down swings according to actual conditions during the rotation process.

[0030] The propeller structure provided above is easy to assemble, and the upper blades 600 and the upper balance rod 601 are integrally formed. After the upper connecting part 300 is assembled on the inner shaft, the two upper blades 600 can be directly connected to the upper connecting part 300 respectively, and the two balance rods are also assembled on the upper connecting part 300, which is convenient for assembly and greatly improves assembly efficiency.

[0031] The inner end of the upper blade 600 is butted against the inner end of the upper balance pole 601 to form an upper end head 602, through which a detachable connection with the upper connecting portion 300 can be achieved. The outer end of the upper blade 600 is offset from the outer end of the upper balance pole 601, thereby achieving an inclined intersecting arrangement between the upper blade 600 and the upper balance pole 601.

[0032] The upper balancing pole 601 is tilted away from the upper blades 600 , and the tilt angle can be determined according to actual conditions, so that the upper balancing pole 601 can achieve a better flight balance adjustment effect.

[0033] In this embodiment, the upper terminal 602 is snap-connected with the upper connecting portion 300 , so that after the upper terminal 602 is connected with the upper connecting portion 300 , the upper terminal 602 and the upper connecting portion 300 can be relatively fixed.

[0034] Specifically, there are many ways of snap-fitting connection between the upper terminal 602 and the upper connecting portion 300. In this embodiment, the upper terminal 602 and the upper connecting portion 300 are snap-fitted after docking, or they can also be snap-fitted through other structures.

[0035] In this embodiment, an upper slot 301 is provided on the outer side of the upper connection part 300, and the upper terminal 602 is inserted into the upper slot 301 and is connected with the upper connection part 300 by snapping. A protrusion may be provided in the upper slot 301, and a snapping slot may be provided on the upper terminal 602. When the upper terminal 602 is inserted into the upper slot 301, the protrusion snaps into the snapping slot, thereby realizing the snapping connection between the upper terminal 602 and the upper slot 301.

[0036] In this embodiment, an inner shaft sleeve 100 is sleeved on the inner shaft body, and the upper connecting portion 300 is movably connected to the inner shaft sleeve 100 in the longitudinal direction, so that the arrangement of the upper connecting portion 300 is convenient.

[0037] The inner sleeve 100 is provided with a clamping groove 101 with a top opening, and the middle part of the upper connecting part 300 is provided with an upper movable shaft 302, which is movably embedded in the clamping groove 101 through the top opening and is movably connected with the inner sleeve 100 in the longitudinal direction. After the upper movable shaft 302 is movably embedded in the clamping groove 101, the upper connecting part 300 can swing within a set range in the longitudinal direction relative to the inner shaft body, so that the upper blade 600 and the upper balance pole 601 can perform self-adjustment during the rotation process.

[0038] An outer shaft body is sleeved on the inner shaft body and rotates in the opposite direction to the inner shaft body. A lower connecting portion 500 is provided on the outer shaft body, and detachable lower blades are respectively connected to both sides of the lower connecting portion 500.

[0039] The lower connecting part 500 may be fixedly connected to the outer shaft body, and rotates synchronously with the outer shaft body, and the lower blades also rotate synchronously with the lower connecting part 500 .

[0040] Alternatively, the lower connecting part 500 is longitudinally movably connected to the outer shaft sleeve 400, and a lower balancing rod is provided on the lower blades, and the lower balancing rod and the lower blades are integrally formed; the inner end of the lower blade is butt-jointed with the inner end of the lower balancing rod to form a lower end head detachably connected to the lower connecting part 500, and the outer end of the lower blade is offset from the outer end of the lower balancing rod.

[0041] The lower blades and the lower balance pole form an integrated structure for easy assembly, and the lower end head can be directly connected to the lower connection part 500.

[0042] The lower connecting portion 500 is movably connected to the outer shaft body in the longitudinal direction, so that the lower blades can swing in the longitudinal direction within a set range. During the rotation process, the lower blades and the lower balance rod can automatically adjust the rotation plane by swinging.

[0043] The function and structure of the lower balance pole here are consistent with those of the upper balance pole 601 .

[0044] In this embodiment, an outer shaft sleeve 400 is sleeved on the outer shaft body, and two grooves 401 are provided on the outer shaft sleeve 400; the middle part of the lower connecting part 500 has a hollow hole, and the inner wall of the hollow hole is convexly provided with a protrusion 501, the outer shaft body moves through the hollow hole, and the two protrusions 501 are respectively and correspondingly embedded in the two grooves 401.

[0045] By arranging the hollow holes, the outer shaft body can pass through the lower connecting part 500, and the protrusion 501 is movably embedded in the groove 401. The protrusion 501 can move in the groove 401, thereby realizing the longitudinal movable connection between the lower blade and the outer shaft body.

[0046] In this embodiment, the outer shaft body 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, and the inner shaft body and the outer shaft body are coaxially arranged. The rotating shaft of the motor can synchronously drive the inner shaft body and the outer shaft body 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, so that the flying toy can fly in the air.

[0047] 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. A propeller structure that is easy to assemble, characterized in that: It comprises an upper connecting part sleeved on the inner shaft body, the upper connecting part is longitudinally movably connected to the inner shaft body, the two sides of the upper connecting part are respectively connected with detachable upper blades, the upper blades are provided with an upper balancing rod, and the upper balancing rod and the upper blades are integrally formed.

2. The propeller structure that is easy to assemble according to claim 1, characterized in that: The inner end of the upper blade is butted against the inner end of the upper balance pole to form an upper end head detachably connected to the upper connection part, and the outer end of the upper blade is offset from the outer end of the upper balance pole.

3. The propeller structure that is easy to assemble as claimed in claim 2, characterized in that: The upper terminal is snap-connected with the upper connecting portion.

4. The propeller structure that is easy to assemble as claimed in claim 3, characterized in that: The upper terminal is butted against the upper connecting portion and then snap-connected.

5. The propeller structure that is easy to assemble as claimed in claim 4, characterized in that: An upper slot is arranged on the outer side of the upper connection part, and the upper end head is inserted into the upper slot and is connected with the upper connection part by snapping.

6. The propeller structure that is easy to assemble according to any one of claims 1 to 5, 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 propeller structure that is easy to assemble as claimed in 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 propeller structure that is easy to assemble according to any one of claims 1 to 5, characterized in that: The inner shaft body is sleeved with an outer shaft body which rotates in the opposite direction to the inner shaft body, and the outer shaft body is provided with a lower layer connecting portion, and both sides of the lower layer connecting portion are respectively connected with detachable lower layer blades.

9. The propeller structure that is easy to assemble as claimed in claim 8, characterized in that: An outer shaft sleeve is sleeved on the outer shaft body, the lower connecting part is longitudinally movably connected to the outer shaft sleeve, a lower balancing rod is provided on the lower blades, and the lower balancing rod and the lower blades are integrally formed; the inner end of the lower blade is butted against the inner end of the lower balancing rod to form a lower end head detachably connected to the lower connecting part, and the outer end of the lower blade is offset from the outer end of the lower balancing rod.

10. The propeller structure that is easy to assemble 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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