Detachable fan blade convenient to transport

Abstract

The utility model discloses a detachable fan blade convenient to transport, which comprises a hub and a blade, the blade comprises a main body and a connecting part which is connected to the main body and is detachably connected with the hub, the connecting part comprises an inserting plate which extends upwards and a connecting plate which extends rightwards, and the inserting plate is connected with the connecting plate. The hub comprises an inserting groove and a groove, the inserting groove is formed in the hub and matched with the inserting plate in an inserted mode, the groove is formed in the lower surface of the hub and matched with the connecting plate, a first limiting structure capable of limiting the blades to move is arranged between the inserting plate and the inserting groove, and a second limiting structure capable of limiting the blades to move is arranged between the connecting plate and the groove. Therefore, detachable connection between the blades and the hub can be achieved, and packaging and transportation are facilitated. Tools are not needed, that is, the two are firmly connected, and the assembly is more convenient; and in addition, under the condition that the inserting plate or the connecting part is loosened, the blades cannot be thrown out, and high safety is achieved.

Description

Technical Field

[0001] This utility model relates to the technical field of fan blades, and in particular to a fan blade that is detachable and easy to transport. Background Technology

[0002] Currently, most fan blades on the market are of a single, integrated structure. This not only makes packaging and transportation difficult but also increases the risk of damage during transport. While a fan blade and fan are disclosed in patent application number CN201520281819.X, which allows for disassembly, packaging, and transportation of the fan blades, assembly still requires tools for screwing in the blades, making the assembly process relatively complex. Utility Model Content

[0003] Therefore, the purpose of this utility model is to provide a fan blade that can separate the hub and blades for easy packaging and transportation, and is easy to assemble.

[0004] The technical solution adopted by this utility model to solve its technical problem is:

[0005] A detachable and easily transportable fan blade includes a hub and several blades connected to the hub. Each blade includes a body and a connecting portion connected to the body and detachably connected to the hub. The connecting portion includes an upwardly extending insert plate and a rightward extending connecting plate. The hub includes a slot disposed therein and engaging with the insert plate, and a groove disposed on its lower surface and engaging with the connecting plate. A first limiting structure is provided between the insert plate and the slot to restrict the movement of the blade, and a second limiting structure is provided between the connecting plate and the groove to restrict the movement of the blade.

[0006] In a preferred embodiment of the present invention, the first limiting structure includes a first limiting hole disposed on the right side of the insert plate and a first limiting protrusion disposed on the side wall of the slot and cooperating with the first limiting hole.

[0007] In a preferred embodiment of this utility model, the lower end of the first limiting protrusion is an inclined surface, the protruding end of the insert plate is an arc surface, and the first limiting hole is disposed at the upper end of the insert plate.

[0008] In a preferred embodiment of the present invention, the second limiting structure includes a second limiting hole disposed on the upper side of the connecting plate and a second limiting protrusion disposed on the upper wall of the groove and cooperating with the second limiting hole.

[0009] In a preferred embodiment of this utility model, a cover is connected to the hub to press the blade onto the hub.

[0010] In a preferred embodiment of this utility model, a first recessed area is provided on the lower surface of the hub, and a second recessed area is provided on the lower surface of the connecting plate. The first recessed area and the second recessed area are combined to form a recessed area that matches the outer contour of the cover body, and the cover body is disposed in the recessed area.

[0011] In a preferred embodiment of the present invention, the second limiting hole is disposed within the second recessed area.

[0012] In a preferred embodiment of this utility model, the included angle between the insert plate and the connecting plate is 90 degrees.

[0013] In a preferred embodiment of this utility model, the insert plate is arc-shaped, the thickness of the insert plate gradually decreases from the lower part of the plate, and the connecting plate is trapezoidal in shape.

[0014] In a preferred embodiment of this utility model, a bending portion is provided between the main body and the connecting portion to connect the two, and the bending amplitude of the bending portion gradually decreases from front to back.

[0015] The beneficial effects of this utility model are as follows: The fan blade includes a hub and blades. The connecting part of the blade includes an upwardly extending insert plate and a connecting plate extending to the right side. The hub includes a slot disposed therein and inserted into the insert plate, and a groove disposed on its lower surface and cooperating with the connecting plate. A first limiting structure is provided between the insert plate and the slot to restrict the movement of the blade, and a second limiting structure is provided between the connecting plate and the groove to restrict the movement of the blade. This allows for a detachable connection between the blade and the hub, enabling the blade and hub to be separated for convenient packaging and transportation. Furthermore, the connection between the blade and the hub is achieved through the first and second limiting structures, which eliminates the need for tools, ensuring a secure connection and making assembly more convenient. Additionally, even if the insert plate or connecting part becomes loose, the blade will not fly off, providing a high level of safety. Attached Figure Description

[0016] Figure 1 This is an assembly diagram of the present invention;

[0017] Figure 2 This is a schematic diagram of the present invention;

[0018] Figure 3 This is a partial sectional view of the present invention;

[0019] Figure 4This is a schematic diagram of the blade in this utility model;

[0020] Figure 5 This is a schematic diagram of the wheel hub in this utility model. Detailed Implementation

[0021] The technical solutions in the embodiments of this utility model will now be clearly and completely described in conjunction with the accompanying drawings.

[0022] Reference Figures 1 to 5 A detachable and easily transportable fan blade includes a hub 1 and several blades 2 connected to the hub 1. Each blade 2 includes a main body 21 and a connecting part 22 connected to the main body 21 and detachably connected to the hub 1. The connecting part 22 includes an upwardly extending insert plate 221 and a rightward extending connecting plate 222. The hub 1 includes a slot 11 disposed therein and inserted into the insert plate 221, and a groove 12 disposed on its lower surface and cooperating with the connecting plate 222. A first limiting structure 3 is provided between the insert plate 221 and the slot 11 to restrict the movement of the blades 2, and a second limiting structure 4 is provided between the connecting plate 222 and the groove 12 to restrict the movement of the blades 2. This allows for a detachable connection between the blade 2 and the hub 1, enabling the blade 2 and hub 1 to be separated for easy packaging and transportation. Furthermore, the connection between the blade 2 and hub 1 is achieved through the first limiting structure 3 and the second limiting structure 4, which allows for a secure connection without the need for tools, making assembly more convenient. In addition, the blade 2 will not fly off even if the insert plate 221 or the connecting part 22 becomes loose, providing a high level of safety.

[0023] In this design, the first limiting structure 3 includes a first limiting hole 31 located on the right side of the insert plate 221 and a first limiting protrusion 32 located on the side wall of the slot 11 and cooperating with the first limiting hole 31. This prevents the insert plate 221 from detaching from the slot 11, making the connection between the two more secure. Furthermore, the lower end of the first limiting protrusion 32 is an inclined surface, the protruding end of the insert plate 221 is an arc surface, and the first limiting hole 31 is located at the upper end of the insert plate 221, allowing the insert plate 221 to be smoothly inserted into the slot 11 for fixation.

[0024] In this design, the second limiting structure 4 includes a second limiting hole 41 disposed on the upper side of the connecting plate 222 and a second limiting protrusion 42 disposed on the upper wall of the groove 12 and cooperating with the second limiting hole 41. This prevents the connecting plate 222 from detaching from the groove 12, making the connection between the two more secure. Thus, by cooperating with the first limiting structure 3, the second limiting structure 4 not only allows for tool-free assembly between the blade 2 and the hub 1, but also provides multi-directional limiting for the blade 2, ensuring that the fan blades do not loosen or fall off during high-speed rotation.

[0025] In this design, a cover 5 is connected to the hub 1 to press the blade 2 onto the hub 1. The cover 5 is fixed to the output end of the motor shaft. In this way, the cover 5 can press the blade 2 tightly onto the hub 1, further fixing the position of the blade 2 and preventing the blade 2 from loosening due to vibration or other reasons during use.

[0026] In this design, a first recessed area 13 is provided on the lower surface of the hub 1, and a second recessed area 2221 is provided on the lower surface of the connecting plate 222. The first recessed area 13 and the second recessed area 2221 combine to form a recessed area that matches the outer contour of the cover 5, and the cover 5 is disposed within the recessed area. Through the design of the first recessed area 13 and the second recessed area 2221, the cover 5 can be accurately installed within the recessed area, ensuring a tight fit between the cover 5, the hub 1, and the connecting plate 222, and improving the installation stability of the cover 5.

[0027] In this design, the second limiting hole 41 is located in the second recessed area 2221, which facilitates the installation of the blade 2 on the hub 1 and allows the second limiting hole 41 to be aligned with the second limiting protrusion 42 for assembly.

[0028] In this design, the included angle between the insert plate 221 and the connecting plate 222 is 90 degrees. This design allows the insert plate 221 and the connecting plate 222 to better fit with the slot 11 and the groove 12 on the hub 1, thereby improving the reliability of the connection.

[0029] In this design, the insert plate 221 is arc-shaped, and its thickness gradually decreases from the lower part of the plate. The connecting plate 222 is trapezoidal in shape, which facilitates the connection between the blade 2 and the hub 1 and improves the stability of their connection. Furthermore, a bending portion 23 is provided between the main body 21 and the connecting portion 22 to connect them. The bending radius of the bending portion 23 gradually decreases from front to back. This design makes the shape of the blade 2 more aerodynamic, reduces airflow resistance, and improves the fan's efficiency.

[0030] Based on the above-described preferred embodiments of this utility model, and through the foregoing description, those skilled in the art can make various changes and modifications without departing from the technical concept of this utility model. The technical scope of this utility model is not limited to the contents of the specification, but must be determined according to the scope of the claims.

Claims

1. A detachable and easily transportable fan blade, comprising a hub (1) and a plurality of blades (2) connected to the hub (1), characterized in that, The blade (2) includes a main body (21) and a connecting part (22) connected to the main body (21) and detachably connected to the hub (1). The connecting part (22) includes an upwardly extending insert plate (221) and a right-side extending connecting plate (222). The hub (1) includes a slot (11) disposed therein and inserted into the insert plate (221) and a groove (12) disposed on its lower surface and cooperating with the connecting plate (222). A first limiting structure (3) is provided between the insert plate (221) and the slot (11) to restrict the movement of the blade (2). A second limiting structure (4) is provided between the connecting plate (222) and the groove (12) to restrict the movement of the blade (2).

2. The detachable and easily transportable fan blade according to claim 1, characterized in that, The first limiting structure (3) includes a first limiting hole (31) disposed on the right side of the insert plate (221) and a first limiting protrusion (32) disposed on the side wall of the slot (11) and cooperating with the first limiting hole (31).

3. A detachable and easily transportable fan blade according to claim 2, characterized in that, The lower end of the first limiting protrusion (32) is an inclined surface, the protruding end of the insert plate (221) is an arc surface, and the first limiting hole (31) is located at the upper end of the insert plate (221).

4. A detachable and easily transportable fan blade according to any one of claims 1 to 3, characterized in that, The second limiting structure (4) includes a second limiting hole (41) disposed on the upper side of the connecting plate (222) and a second limiting protrusion (42) disposed on the upper wall of the groove (12) and cooperating with the second limiting hole (41).

5. A detachable and easily transportable fan blade according to claim 4, characterized in that, The hub (1) is connected to a cover (5) that can press the blade (2) onto the hub (1).

6. A detachable and easily transportable fan blade according to claim 5, characterized in that, The lower surface of the hub (1) is provided with a first recessed area (13), and the lower surface of the connecting plate (222) is provided with a second recessed area (2221). The first recessed area (13) and the second recessed area (2221) are combined to form a recessed area that matches the outer contour of the cover (5). The cover (5) is disposed in the recessed area.

7. A detachable and easily transportable fan blade according to claim 6, characterized in that, The second limiting hole (41) is disposed in the second recessed area (2221).

8. A detachable and easily transportable fan blade according to claim 1, characterized in that, The included angle between the insert plate (221) and the connecting plate (222) is 90 degrees.

9. A detachable and easily transportable fan blade according to claim 1, characterized in that, The insert plate (221) is arc-shaped, and the thickness of the insert plate (221) gradually decreases from the lower part of the plate. The connecting plate (222) is trapezoidal in shape.

10. A detachable and easily transportable fan blade according to claim 9, characterized in that, A bending portion (23) is provided between the main body (21) and the connecting portion (22) to connect the two, and the bending amplitude of the bending portion (23) gradually decreases from front to back.

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