FAN BLADE INSTALLING STRUCTURE AND CEILING FAN

Description

BACKGROUND OF THE INVENTION

FIELD OF THE INVENTION

The present invention relates to a ceiling fan, especially to a fan blade installing structure and a ceiling fan.

DESCRIPTION OF THE PRIOR ARTS

The conventional ceiling fan has a motor mounted on a fixing base and fan blades mounted on the fixing base. The motor rotates the fixing base, and then the fixing base drives the fan blades to rotate. However, the fan blades are installed on the fixing base by screws. This makes the installation of the ceiling fan cumbersome and involves many processes, resulting in low production efficiency. In addition, fixed only with the screws, the fan blades will shake when rotating, making the ceiling fan operate unstably.

To overcome the shortcomings, the present invention provides a fan blade installing structure and a ceiling fan to mitigate or obviate the aforementioned problems.

SUMMARY OF THE INVENTION

The main objective of the present invention is to provide a fan blade installing structure. A fan blade of the fan blade installing structure is installed on a first engaged unit of a fixing base by a second engaged unit, the first engaged unit and the second engaged unit are engaged with each other in a concave-convex manner to quickly install the fan blade.

The main objective of the present invention is also to provide a ceiling fan that comprises said fan blade installing structure.

The fan blade installing structure comprises a fixing base and a fan blade. The fixing base comprises a first engaged slot. The first engaged slot comprises an installing gap, a side gap, and a first engaged unit. The installing gap is formed on a surface of the fixing base, and the side gap is formed on another surface of the fixing base. An end of the side gap connects to the installing gap, and another end of the side gap extends away from the installing gap. The first engaged unit is mounted on a side of the side gap and is aligned with the installing gap.

The fan blade is mounted on the fixing base and comprises a second engaged unit.

Either one of the first engaged unit and the second engaged unit comprises an engaged protrusion, and the other one of the first engaged unit and the second engaged unit comprises a second engaged slot.

When the second engaged unit moves into the side gap from the installing gap, the engaged protrusion moves relatively to the second engaged slot and is engaged in the second engaged slot, such that the fan blade is engaged in the first engaged slot.

Therefore, when the fan blade is installed on the fixing base, through the engaged protrusion and the second engaged slot connected to each other, the installation of the fan blade becomes faster. The limitation of the engaged protrusion in the second engaged slot can ensure that the fan blade is limited to different surfaces of the fixing base, thereby increasing the contact area between the fan blade and the fixing base, and improving the stability of the fan blade.

Other objectives, advantages and novel features of the invention will become more apparent from the following detailed description when taken in conjunction with the accompanying drawings.

BRIEF DESCRIPTION OF THE DRAWINGS

FIG. 1 is a perspective view of a ceiling fan in accordance with the present invention;

FIG. 2 is a perspective view of a fan blade installing structure in FIG. 1 in accordance with the present invention;

FIG. 3 is an exploded view of the fan blade installing structure in FIG. 2;

FIG. 4 is another exploded view of the fan blade installing structure in FIG. 2;

FIG. 5 is an enlarged view of the fan blade installing structure in FIG. 2;

FIG. 6 is an enlarged view of the fixing base in FIG. 2;

FIG. 7 is another enlarged view of the fixing base in FIG. 2;

FIG. 8 is another enlarged view of the fixing base in FIG. 2;

FIG. 9 is another enlarged view of the fixing base in FIG. 2;

FIG. 10 is an enlarged view of the fan blade in FIG. 2; and

FIG. 11 is another enlarged view of the fan blade in FIG. 2.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

With reference to FIG. 1 to FIG. 4, a fan blade installing structure in accordance with the present invention comprises a fixing base 1 and a fan blade 2. The fan blade 2 is installed on the fixing base 1. A ceiling fan in accordance with the present invention comprises at least one said fan blade installing structure.

With reference to FIG. 5 to FIG. 11, the fixing base 1 comprises a first engaged slot 11. The first engaged slot 11 comprises an installing gap 12 and a side gap 13 on two different surfaces of the fixing base 1. An end of the side gap 13 connects with the installing gap 12, and another end of the side gap 13 extends away from the installing gap 12. The first engaged slot 11 comprises a first engaged unit 10 mounted on a side of the side gap 13, and the first engaged unit 10 is aligned to the installing gap 12.

The fan blade 2 comprises a second engaged unit 20. One of the first engaged unit 10 and the second engaged unit 20 comprises a second engaged slot 201, and the other one of the first engaged unit 10 and the second engaged unit 20 comprises an engaged protrusion 101. When the second engaged unit 20 moves into the side gap 13 from the installing gap 12, the engaged protrusion 101 moves to the second engaged slot 201 and is engaged with the second engaged slot 201, such that the fan blade 2 is engaged with the first engaged slot 11.

In this embodiment, the fan blade 2 of the fan blade installing structure is installed on the first engaged unit 10 of the fixing base 1 through the second engaged unit 20. The second engaged unit 20 and the first engaged unit 10 are engaged with each other to quickly install the fan blade 2. This improves the production efficiency and the stability of the fixing base 1 and the fan blade 2.

Precisely, the fixing base 1 is a structure connected to a motor of a ceiling fan. The fixing base 1 comprises the installing gap 12 and the side gap 13, and the installing gap 12 and the side gap 13 are formed on the different surfaces of the fixing base 1. With reference to FIG. 6, the installing gap 12 is formed on a top surface of the fixing base 1, and the side gap 13 is formed on a side surface of the fixing base 1. The installing gap 12 and the side gap 13 connect to each other. That is, the second engaged unit 20 can move through the installing gap 12 and then abut against the side gap 13. The first engaged slot 11 comprises the first engaged unit 10 mounted on the side of the side gap 13. The first engaged unit 10 is corresponding to the installing gap 12 in location, such that the second engaged unit 20 can be engaged with the second engaged slot 201 (or the engaged protrusion 101) of the side gap 13 by the engaged protrusion 101 or (the second engaged slot 201) after moving through the installing gap 12.

The fan blade 2 comprises the second engaged unit 20. When the fan blade 2 is installed, the second engaged unit 20 of the fan blade 2 is aligned to the installing gap 12. Because the first engaged unit 10 is located on the side of the side gap 13, the first engaged unit 10 and the second engaged unit 20 can be limited to each other through moving the engaged protrusion 101 relatively to the second engaged slot 201, such that the second engaged unit 20 is engaged with the side gap 13 to install the fan blade 2 on the fixing base 1. Therefore, when the fan blade 2 is installed on the fixing base 1, through the engaged protrusion 101 and the second engaged slot 201 connected to each other, the installation of the fan blade 2 becomes faster. The limitation of the engaged protrusion 101 in the second engaged slot 201 can ensure that the fan blade 2 is limited to different surfaces of the fixing base 1, thereby increasing the contact area between the fan blade 2 and the fixing base 1, and improving the stability of the fan blade 2.

Furthermore, the fan blade 2 comprises a blade part 21 and a board part 22.

One of the fixing base 1 and the board part 22 comprises at least one convex part 221, and the other one of the fixing base 1 and the board part 22 comprises at least one concave part 222. When the board part 22 abuts the fixing base 1, the convex part 221 is engaged with the concave part 222, such that the fan blade 2 is limited on the fixing base 1.

In this embodiment, the fan blade 2 is engaged with the side gap 13 through the second engaged unit 20 of the blade part 21. At the same time, the board part 22 can comprise the convex part 221 (or the concave part 222), and the fixing base 1 comprises the concave part 222 (or the convex part 221) at a corresponding location. When the fan blade 2 is installed on the fixing base 1, the convex part 221 and the concave part 222 are combined with each other, such that the convex part 221 is limited by an inner wall of the concave part 222. On one hand, it can prevent the fan blade 2 from deviating from the original position when rotating, and also prevent the fixing base 1 from being torn in a direction along the installing gap 12 or a direction along the side gap 13, thereby improving the stability of the fan blade 2 and prolonging the service life of the fixing base 1. On the other hand, the above structure can improve the installation efficiency. As long as the convex part 221 and the concave part 222 are engaged with each other, the fan blade 2 can be limited during installing.

Furthermore, the fan blade installing structure also comprises a fixing unit 3.

The fixing base 1 comprises a first fixing hole 14, and the board part 22 comprises a second fixing hole 223. The fixing unit 3 is mounted through the second fixing hole 223 and engaged with the first fixing hole 14.

To further improve the stability of the connection between the fan blade 2 and the fixing base 1, the fixing unit 3 is mounted through the second fixing hole 223, and then engaged in the first fixing hole 14. Therefore, the fan blade 2 is limited on the fixing base 1, which can prevent the fan blade 2 from deviating from the original position when in use.

In this embodiment, the fixing unit 3 can be selected from any or a combination of well-known fasteners such as bolts, studs, screws, nuts, washers, pins, etc., as long as the fan blade 2 can be locked to the fixing base 1.

Furthermore, the fixing unit 3 is a screw and is mounted through the second fixing hole 223, and then screwed with the first fixing hole 14.

The screw has a screw rod and a screw head. After the screw rod passes through the second fixing hole 223, an external thread of the screw rod fits into an internal thread of the first fixing hole 14, and the screw head of the screw also presses down on the fan blade 2, such that the fan blade 2 is locked to the fixing base 1.

Furthermore, the fixing base 1 comprises a first limiting slot 15 formed from the top surface and the side surface of the fixing base 1. The first engaged slot 11 is located in the first limiting slot 15.

The concave part 222 or the convex part 221 is located in the first limiting slot 15, and the first fixing hole 14 is located in the first limiting slot 15.

The blade part 21 is installed in the first limiting slot 15 and covers the side gap 13 on the side surface of the fixing base 1.

The board part 22 is installed in the first limiting slot 15 and covers the installing gap 12 on the top surface of the fixing base 1.

The first engaged slot 11 is located in the first limiting slot 15 of the fixing base 1 as a pre-installed location for the fan blade 2. At the same time, the first limiting slot 15 can limit a location of the blade part 21 and the board part 22 through an inner wall of the first limiting slot 15, such that the stability of the fan blade 2 and the fixing base 1 is improved. At the same time, in this embodiment, the first engaged slot 11, the concave part 222 (or the convex part 221), and the first fixing hole 14 are located in the first limiting slot 15. Holes, slots, etc. with different functions are concentrated in the first limiting slot 15, thereby reducing the holes, the slots, etc. being exposed on an outer surface of the fixing base 1, and improving the overall aesthetics of the ceiling fan.

Furthermore, the second engaged unit 20 comprises an engaged hook 23. At a movement end of a movement of the engaged protrusion 101 and second engaged slot 201, the engaged hook 23 is engaged with the first engaged unit 10.

The engaged hook 23 includes the second engaged slot 201 or the engaged protrusion 101. When the second engaged unit 20 moves relative to the first engaged unit 10 during installation of the fan blade 2, the corresponding engaged protrusion 101 and the second engaged slot 201 move relatively. At the movement end of the engaged protrusion 101 and the second engaged slot 201, the engaged hook 23 of the second engaged unit 20 is engaged with the first engaged unit 10, such that the second engaged unit 20 is limited in the side gap 13. Therefore, the engaged hook 23 can improve the installed stability of the second engaged unit 20 and the first engaged unit 10. Said movement end refers to the state in which the engaged protrusion 101 moves relatively to the second engaged slot 201 and then stop while the fan blade 2 is installed in the first engaged slot 11. When the second engaged unit 20 moves relatively to the first engaged unit 10, the engaged hook 23 moves along a first surface of the first engaged unit 10 and is engaged with a second surface of the first engaged unit 10 at an end of a movement, that is, the engagement takes place at two different surfaces. Vibration will occur due to the switching of the engaged hook 23 between the two different surfaces, and said vibration will be transmitted to the fan blade 2, as a notification that the engaged hook 23 is in place and engaged with the first engaged unit 10. Said first surface and said second surface can be two adjacent surfaces of the first engaged unit 10, or the first surface can be the side surface of the first engaged unit 10, and the second surface can be a hole, a slot, a slit, a board, or other structure of the first engaged unit 10 that can fix the engaged hook 23.

Furthermore, the second engaged slot 201 is located on the second engaged unit 20, and the second engaged slot 201 is located on the engaged hook 23. The engaged protrusion 101 is located on the first engaged unit 10. The engaged protrusion 101 comprises a compressible part 16, and the compressible part 16 is adjustable. The engaged hook 23 is engaged with the compressible part 16.

Precisely, the second engaged slot 201 is located on the second engaged unit 20, that is, the second engaged slot 201 is located on the fan blade 2. The second engaged slot 201 is located on the engaged hook 23. The engaged protrusion 101 is located on the first engaged unit 10, that is, on the fixing base 1. The engaged protrusion 101 comprises the compressible part 16. At the movement end of the engaged protrusion 101 and the second engaged slot 201, the engaged hook 23 of the second engaged unit 20 is engaged with the compressible part 16 of the first engaged unit 10, thereby completing the notification of the fan blade 2 in place. When the fan blade 2 is disassembled, the compressible part 16 is adjusted and driven to disengage from the engaged hook 23, and then the second engaged slot 201 is moved along the engaged protrusion 101 to detach from the first engaged slot 11, thereby facilitating convenience in the disassembly of the fan blade 2.

Furthermore, the compressible part 16 is located on an end of the engaged protrusion 101. A compressed space 17 is formed between the compressible part 16 and a wall of the fixing base 1. The compressible part 16 can be adjusted through the compressed space 17.

Precisely, the engaged protrusion 101 extends from the wall of the fixing base 1, and the compressible part 16 is located on the end of the engaged protrusion 101. The compressed space 17 is formed between the compressible part 16 and the wall of the fixing base 1. The compressed space 17 makes the compressible part 16 have certain mobility and space for movement. The compressible part 16 can be movable and adjusted toward the compressed space 17, such that the compressible part 16 can be adjusted when the fan blade 2 needs to be disassembled. Therefore, after adjusted in the compressed space 17, the compressible part 16 can be detached from the engaged hook 23, thereby disassembling the fan blade 2.

Furthermore, the fan blade 2 has the blade part 21 and the board part 22. An end of the second engaged unit 20 is connected to a bottom surface of the blade part 21, and another end of the second engaged unit 20 is connected to the board part 22.

The second engaged unit 20 has the second engaged slot 201, and the first engaged unit 10 has the engaged protrusion 101.

An inner diameter of the second engaged slot 201 gradually increases in a direction away from the board part 22, such that an inner wall of the second engaged slot 201 forms a second engaged slope 2011. An outer side of the engaged protrusion 101 forms a first engaged slope 1011, and the first engaged slope 1011 is parallel to the second engaged slope 2011. The first engaged slope 1011 and an adjacent surface of the first engaged slope 1011 abut the inner wall of the second engaged slot 201.

The inner diameter of the second engaged slot 201 gradually increases in a direction away from the installing gap 12, that is, the inner diameter of the second engaged slot 201 at an end away from the installing gap 12 is largest. Therefore, when the second engaged unit 20 extends into the first engaged slot 11 from the installing gap 12, the maximum inner diameter of the second engaged slot 201 can be engaged more easily through the minimum outer diameter of the engaged protrusion 101, and the minimum outer diameter of the engaged protrusion 101 and the maximum inner diameter of the second engaged slot 201 are most easily connected, reducing the difficulty in assembly. When the second engaged unit 20 is at the end of the movement, the board part 22 on the end of the second engaged unit 20 abuts the fixing base 1. At the same time, said inner diameter of the second engaged slot 201 is designed so that the inner wall of the second engaged slot 201 forms the second engaged slope 2011. The outer surface of the engaged protrusion 101 forms the first engaged slope 1011 parallel to the second engaged slope 2011. When the first engaged slope 1011 and the adjacent surface of the first engaged slope 1011 abut the inner wall of the second engaged slot 201, shapes of the engaged protrusion 101 and the second engaged slot 201 can fit with each other in a taper, equivalent to a mortise and tenon structure. When the fan blade 2 is installed downward on the fixing base 1, the slope between the first engaged slope 1011 of the engaged protrusion 101 and the second engaged slope 2011 of the second engaged slot 201 will cause the fan blade 2 to be pressed closer to the fixing base 1. Therefore, the fixing base 1 and the fan blade 2 are integrated, and the stability between the fan blade 2 and the fixing base 1 is improved.

Even though numerous characteristics and advantages of the present invention have been set forth in the foregoing description, together with details of the structure and features of the invention, the disclosure is illustrative only. Changes may be made in the details, especially in matters of shape, size, and arrangement of parts within the principles of the invention to the full extent indicated by the broad general meaning of the terms in which the appended claims are expressed.