BLADE INSTALLATION STRUCTURE OF CEILING FAN

A blade installation structure of a ceiling fan includes a blade, a coupling seat, and an elastic member. The blade has a connecting portion. The connecting portion has a through hole. The coupling seat has a slot. A displacement space is defined in the slot. The elastic member includes an elastic portion and an abutting portion connected to the elastic portion. The abutting portion abuts against the through hole of the blade, and the elastic portion is confined within the through hole of the blade, so that the blade is locked and fixed to the coupling seat. The blade installation structure of the ceiling fan has the advantages of quick installation and increased blade support.

FIELD OF THE INVENTION

The present invention relates to a ceiling fan, and more particularly to a blade installation structure of a ceiling fan.

BACKGROUND OF THE INVENTION

In general, a conventional ceiling fan includes a ceiling fan body and a plurality of blade frames connected to the outside of the ceiling fan body. Each blade frame is provided with a blade. Each blade is locked and fixed to the corresponding blade frame by screws to complete the assembly of the ceiling fan and the blades, so that the ceiling fan can drive the blades to rotate smoothly and stably.

However, the assembly process is complicated, cumbersome and time-consuming. If the ceiling fan is to be moved or replaced, the large number of screws will cause inconvenience in disassembly and assembly. Accordingly, the inventor of the present invention has devoted himself based on his many years of practical experiences to solve these problems.

SUMMARY OF THE INVENTION

The primary object of the present invention is to provide a blade installation structure of a ceiling fan, which has the advantages of quick installation and increased blade support.

In order to achieve the above object, the present invention provides a blade installation structure of a ceiling fan. The ceiling fan has a motor unit. The motor unit has a motor and a rotating portion. The motor drives the rotating portion to rotate. The blade installation structure comprises a blade, a coupling seat, and an elastic member. The blade has a connecting portion. A pushing portion is formed on an outer edge of the connecting portion. The connecting portion has a through hole. The coupling seat has one end fixed to the rotating portion of the motor. The coupling seat has a slot. A displacement space is defined in the slot. The coupling seat has a first opening for the connecting portion of the blade to be inserted into the slot from the first opening and the displacement space. The elastic member corresponds to the connecting portion of the blade and is disposed in the slot of the coupling seat. The elastic member includes an elastic portion and an abutting portion connected to the elastic portion. The elastic portion has a fixed end adjacent to the first opening and a free end away from the first opening. The fixed end of the elastic portion is fixed to the coupling seat. The free end of the elastic portion is connected to the abutting portion. The elastic portion and the abutting portion of the elastic member correspond to the pushing portion and the through hole of the blade, respectively. When the elastic portion is in a normal state, the elastic portion is oblique from the fixed end toward the free end, the elastic portion is in the displacement space of the slot corresponding to the pushing portion of the blade, and the abutting portion of the elastic member is in the displacement space of the slot corresponding to the through hole of the blade, so that the elastic portion and the abutting portion are in a normal state position. When the elastic portion is pushed and elastically displaced by the pushing portion of the blade to be in a stress state, the elastic portion and the abutting portion are in a stress state position away from the displacement space of the slot. When the elastic portion and the abutting portion are restored to be in the normal state, the abutting portion abuts against the through hole of the blade.

In the blade installation structure of the ceiling fan provided by the present invention, the abutting portion abuts against the through hole of the blade, and the elastic portion is confined within the through hole of the blade, so that the blade is locked and fixed to the coupling seat. The blade installation structure of the ceiling fan has the advantages of quick installation and increased blade support.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

FIG.1is a perspective view of a ceiling fan of a preferred embodiment of the present invention.FIG.2is an exploded view of the preferred embodiment of the present invention.FIG.3is a schematic view showing the operation of the preferred embodiment of the present invention. The present invention discloses a blade installation structure100. The blade installation structure100is installed to a ceiling fan200. The ceiling fan200has a motor unit210. The motor unit210has a motor housing220, a motor230, and a rotating portion240. The motor230is disposed in the motor housing220. The motor230drives the rotating portion240to rotate. The blade installation structure100comprises a blade10, a coupling seat20, an elastic member30, and a hanging member40.

The blade10has a connecting portion11. A pushing portion12is formed on the outer edge of the connecting portion11. The connecting portion11has a through hole13. The inner peripheral wall of the through hole13has a first surface131.

The coupling seat20has one end fixed to the rotating portion240of the motor230. The coupling seat20has a slot21. A displacement space21ais defined in the slot21. The coupling seat20has a first opening22and a second opening23. The first opening22allows the connecting portion11of the blade10to be inserted into the slot21from the first opening22and the displacement space21a. The coupling seat20has a support portion24adjacent to the second opening23. One side of the coupling seat20, facing away from the motor230, is formed with two first locking holes25. The slot21is located below the first locking holes25and the second opening23. The coupling seat20has a third opening26corresponding in position to the first locking holes25and opposite to the first locking holes25. The third opening26communicates with the first opening22.

FIG.3andFIG.4are schematic views showing the operation of the preferred embodiment of the present invention. The elastic member30corresponding to the connecting portion11of the blade10is disposed in the slot21of the coupling seat20. The elastic member30is inserted from the third opening26into the slot21. The elastic member30includes an elastic portion31and an abutting portion32connected to the elastic portion31. The elastic portion31has a fixed end311adjacent to the first opening22and a free end312away from the first opening22. The fixed end311of the elastic portion31is fixed to the coupling seat20. The fixed end311of the elastic portion31is formed with second locking holes33corresponding to the respective first locking holes25of the coupling seat20. The free end312of the elastic portion31is connected to the abutting portion32. The elastic portion31and the abutting portion32of the elastic member30correspond to the pushing portion12and the through hole13of the blade10, respectively. When the elastic portion31is in a normal state, the elastic portion31is oblique from the fixed end311toward the free end312, the elastic portion31is in the displacement space21aof the slot21corresponding to the pushing portion12of the blade10, and the abutting portion32of the elastic member30is in the displacement space21aof the slot21corresponding to the through hole13of the blade10, so that the elastic portion31and the abutting portion32are in a normal state position30a. When the elastic portion31is pushed and elastically displaced by the pushing portion12of the blade10to be in a stress state, the elastic portion31and the abutting portion32are in a stress state position30baway from the displacement space21aof the slot21. When the elastic portion31and the abutting portion32are restored to be in the normal state, the abutting portion32abuts against the through hole13of the blade10. Furthermore, the abutting portion32has an abutting surface321corresponding to the first surface131of the through hole13. The abutting surface321is configured to be in close contact with the first surface131. In this embodiment of the present invention, the first surface131and the abutting surface321are flat surfaces. The elastic member30further has a hanging portion34extending from the abutting portion32. The hanging portion34corresponds to the second opening23. The hanging portion34extends out of the second opening23. The hanging portion34has a hanging hole341. The hanging portion34is connected with a stop piece342between the second opening23and the hanging hole341. The stop piece342is perpendicular to the hanging portion34. The stop piece342extends from the hanging portion34to the outside of the support portion24. When the elastic portion31and the abutting portion32are in the normal state, the stop piece342is supported by the support portion24.

The hanging member40has a hook41corresponding to the hanging hole341. When in use, the hook41is inserted in the hanging hole341to apply a force, so that the elastic portion31and the abutting portion32of the elastic member30are elastically displaced to be in the stress state position30b, so as to disengage the blade10from the slot21of the coupling portion20.

FIG.5andFIG.6are schematic views of the preferred embodiment of the present invention when in use. When the blade installation structure100of the ceiling fan is to be assembled, the pushing portion12of the blade10is aligned with the slot21of the coupling seat20, and the blade10is moved toward the first opening22of the coupling seat20, so that the connecting portion11and the pushing portion12of the blade10are located in the displacement space21aof the coupling seat20. At this time, the elastic portion31of the elastic member30is pushed and elastically displaced by the pushing portion12of the blade10to be in the stress state, the elastic portion31and the abutting portion32are in the stress state position30baway from the displacement space21aof the slot21. Then, the pushing portion12of the blade10is further pushed toward the displacement space21a, so that the elastic member30corresponds to the through hole13of the blade10. At this time, the elastic portion31and the abutting portion32are restored to be in the normal state, and the abutting portion32abuts against the through hole13of the blade10. The elastic portion31is confined within the through hole13of the blade10, and the abutting surface321is in close contact with the first surface131, such that the blade10is locked and fixed to the coupling seat20to complete the assembly of the blade installation structure100of the ceiling fan quickly.

FIG.7is a schematic view of the preferred embodiment of the present invention when in use. When the blade10is to be disassembled or replaced, the hook41of the hanging member40is inserted in the hanging hole341of the hanging portion34to pull the elastic member30upward, so that the elastic portion31and the abutting portion32are elastically displaced to be in the stress state position30b. Thus, the blade10can be disengaged from the slot21of the coupling seat20, so that the blade10can be replaced easily.

It is worth mentioning that the stop piece342is perpendicular to the hanging portion34. The stop piece342extends from the hanging portion34to the outside of the support portion24. When the elastic portion31and the abutting portion32are in the normal state, the stop piece342is supported by the support portion24. Thereby, when the motor230drives the blade10to rotate, the blade10will be subjected to the outward centrifugal force. Through the stop piece342, the elastic member30can be prevented from being deformed and has the effect of supporting the blade10.