Fan blade connecting structure of a fan lamp

Abstract

The utility model discloses a fan blade connecting structure of fan lamp, including having set up in the motor of fan support bottom and the fan blade of a plurality of settings in the motor bottom, the motor is connected with the cover body that can tightly fix a plurality of fan blade on the motor, the fan blade and be located with the motor connection one end on be equipped with a plurality of first through -hole, the bottom of motor is equipped with a plurality of with first through -hole intercommunication's second through -hole, the cover body includes a plurality of settings in the locating column of cover body and through first through -hole inserts second through -hole, and a plurality of settings in the outer rim of cover body and can make the opening of fan blade extension, the cover body is fixed on the motor through the mode of screw thread connection. To this through such structure to realize the accurate installation positioning of fan blade, and also promote the stability of fan blade connection, avoid its occurrence to fall off, to guarantee its safety performance.

Description

Technical Field

[0001] This utility model relates to the technical field of fan lights, and in particular to a fan blade connection structure for a fan light. Background Technology

[0002] As a home appliance that combines lighting and ventilation, the connection structure between the fan blades and the motor of a fan light directly affects the product's safety, stability, and lifespan. Currently, the fan blade connection structures on the market have the following defects: First, insufficient blade positioning accuracy. They are generally fixed directly with screws, which easily leads to misalignment of the holes during installation, resulting in uneven force on the blades during rotation, causing vibration and noise, and even causing blade misalignment. Second, poor connection stability. After long-term use, screws are prone to loosening, and clips are prone to aging and failure, posing a safety hazard of blade detachment. Utility Model Content

[0003] Therefore, the purpose of this utility model is to provide a fan blade connection structure for use in fan lights that enables precise installation and stable connection of fan blades.

[0004] The technical solution adopted by this utility model to solve its technical problem is as follows: A fan blade connection structure for a fan light includes a motor disposed at the bottom of a fan bracket and several fan blades disposed at the bottom of the motor. A cover is connected to the motor to press and fix the fan blades to the motor. The fan blades have several first through holes at the end connected to the motor. The bottom of the motor has several second through holes communicating with the first through holes. The cover includes several positioning pins disposed on the cover and inserted into the second through holes through the first through holes, and several openings disposed on the outer edge of the cover to allow the fan blades to extend. The cover is fixed to the motor by a threaded connection.

[0005] In a preferred embodiment of this utility model, the cover body is provided with a third through hole through which the motor connecting shaft can pass, the cover body is provided with a groove that cooperates with the fan blade, and the positioning post is provided on the bottom surface of the groove.

[0006] In a preferred embodiment of this utility model, the bottom surface of the groove is provided with ribs that can support the fan blades, and the upper surface of the ribs is flush with the bottom surface of the opening.

[0007] In a preferred embodiment of this utility model, a first threaded hole is provided on the bottom surface of the groove and between two adjacent fan blades, a plurality of second threaded holes are provided on the bottom of the motor and connected to the first threaded hole, and a screw is provided on the cover that can pass through the first threaded hole and lock into the second threaded hole.

[0008] In a preferred embodiment of this utility model, elastic buckles are provided on both the left and right side walls of the opening to prevent the fan blades from detaching from the groove.

[0009] In a preferred embodiment of this utility model, there are two first through holes, which are respectively disposed on the left and right ends of the fan blade.

[0010] In a preferred embodiment of the present invention, the bottom surface of the opening is provided with a positioning protrusion for positioning the fan blade, and the fan blade is provided with a positioning hole that cooperates with the positioning protrusion. The positioning protrusion is located on the axis of symmetry of the two first through holes.

[0011] In a preferred embodiment of this utility model, a positioning protrusion is provided on the inner sidewall of the outer edge of the cover, and a positioning recess is provided on the outer sidewall of the motor to cooperate with the positioning protrusion.

[0012] In a preferred embodiment of this utility model, sealing gaskets are fitted on both the upper and lower ends of the positioning post and the fan blade.

[0013] The beneficial effects of this utility model are: by using the positioning pin on the cover to pass through the first through hole and insert into the second through hole, the fan blades can be accurately installed and positioned. Furthermore, by assembling several fan blades onto the cover and then pressing and fixing the fan blades to the motor with the cover, the stability of the fan blade connection is improved, preventing them from falling off and thus ensuring its safety performance. Attached Figure Description

[0014] Figure 1 This is an exploded view of the present invention; Figure 2 This is a schematic diagram of the cover body in this utility model; Figure 3 This is a schematic diagram of the motor in this utility model; Figure 4 This is a schematic diagram of the fan blade in this utility model; Figure 5 This is a schematic diagram of a fan light with the connection structure of this utility model. Detailed Implementation

[0015] The technical solutions in the embodiments of this utility model will now be clearly and completely described in conjunction with the accompanying drawings.

[0016] Reference Figures 1 to 5A fan blade connection structure for a fan light includes a motor 2 disposed at the bottom of a fan bracket 1 and several fan blades 3 disposed at the bottom of the motor 2. A cover 4 is connected to the motor 2 to press and fix the several fan blades 3 onto the motor 2. Several first through holes 31 are provided on the end of the fan blades 3 connected to the motor 2. Several second through holes 21 are provided at the bottom of the motor 2 to communicate with the first through holes 31. The cover 4 includes several positioning pins 41 disposed on the cover 4 and inserted into the second through holes 21 through the first through holes 31, and several openings 42 disposed on the outer edge of the cover 4 to allow the fan blades 3 to extend. The cover 4 is fixed to the motor 2 by a threaded connection. The motor 2 is an external rotor motor 2, and the fan blades 3 are connected to the rotor of the motor 2, preferably 3-6 in number. The positioning post 41, the first through hole 31, and the second through hole 21 correspond one-to-one, with the positioning post 41 forming a clearance fit with the first through hole 31 and the second through hole 21 (the fit clearance is 0.1-0.2mm), facilitating insertion and assembly while ensuring positioning accuracy. The gap between the opening 42 and the fan blades 3 is 0.5-1mm. This mechanism uses the first through hole 31 and the positioning post 41 to fix several fan blades 3 inside the cover 4 for subsequent assembly. Then, the second through hole 21 and the positioning post 41 are used, and screws 5 are used to lock the cover 4 onto the motor 2 to complete the assembly. This achieves precise installation and positioning of the fan blades 3, improves the stability of the fan blade connection, prevents them from falling off, and ensures their safety performance.

[0017] In this design, the cover 4 has a third through hole 43 through which the connecting shaft of the motor 2 passes, thus fixing the lamp body by allowing the connecting shaft of the motor 2 to pass through. The cover 4 has a groove 44 that mates with the fan blade 3, and the positioning post 41 is disposed on the bottom surface of the groove 44. The depth of the groove 44 is the same as the thickness of the connecting end of the fan blade 3, so that the connecting end of the fan blade 3 can be completely embedded in the groove 44 for positioning.

[0018] In this design, the bottom surface of the groove 44 is provided with ribs 45 that can support the fan blades 3. The upper surface of the ribs 45 is flush with the bottom surface of the opening 42. This not only enhances the structural strength of the cover 4, but also provides additional support points for the fan blades 3, reduces the deformation of the connecting end of the fan blades 3, and extends the service life of the fan blades 3.

[0019] In this design, a first threaded hole 46 is provided on the bottom surface of the groove 44 and between two adjacent fan blades 3. The bottom of the motor 2 is provided with several second threaded holes 22 that communicate with the first threaded hole 46. The cover 4 is provided with screws 5 that can pass through the first threaded hole 46 and lock into the second threaded hole 22. In this way, the cover 4 is fixed to the motor 2 from bottom to top, thereby ensuring that the fan blades 3 are pressed tightly onto the motor 2 and preventing the fan blades 3 from shaking when rotating.

[0020] In this design, elastic buckles 47 are provided on both the left and right side walls of the opening 42 to prevent the fan blade 3 from detaching from the groove 44. The free end of each elastic buckle 47 has a protrusion facing inwards from the groove 44, and the end face of the protrusion is arc-shaped to facilitate deformation of the buckle during fan blade 3 assembly. This limits the vertical position of the fan blade 3 when it is assembled inside the cover 4, facilitating the subsequent assembly of the cover 4 and the fan blade 3 onto the motor 2.

[0021] In this design, there are two first through holes 31, located on the left and right ends of the fan blade 3, respectively. Furthermore, the bottom surface of the opening 42 is provided with a positioning protrusion 48 for positioning the fan blade 3. The fan blade 3 has positioning holes 32 that mate with the positioning protrusion 48. The positioning protrusion 48 is positioned on the symmetrical axis of the two first through holes 31. This allows for precise positioning of the fan blade 3 through the two first through holes 31 and the positioning post 41, preventing misalignment during installation.

[0022] In this design, a positioning protrusion 49 is provided on the inner sidewall of the outer edge of the cover 4, and a positioning recess 23 is provided on the outer sidewall of the motor 2 to cooperate with the positioning protrusion 49. Thus, during assembly, the positioning protrusion 49 engages with the positioning recess 23, achieving pre-positioning of the cover 4 and the motor 2, preventing the cover 4 from rotating relative to the motor 2 during assembly, thereby facilitating the installation of the cover 4 onto the motor.

[0023] In this design, sealing gaskets 6 are fitted onto the positioning post 41 at both the upper and lower ends of the fan blade 3. These gaskets act as a buffer, reducing vibration transmission during fan blade 3 rotation and lowering noise. Furthermore, the upper and lower surfaces of the sealing gaskets 6 feature anti-slip textures, enhancing the fit between the gaskets 6 and the contact surface, preventing minor displacement of the fan blade 3 due to vibration, and further improving connection stability.

[0024] 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 fan blade connection structure for a fan light, comprising a motor (2) disposed at the bottom of a fan bracket (1) and a plurality of fan blades (3) disposed at the bottom of the motor (2), characterized in that, The motor (2) is connected to a cover (4) that can press and fix several fan blades (3) onto the motor (2). The fan blades (3) are provided with several first through holes (31) at the end connected to the motor (2). The bottom of the motor (2) is provided with several second through holes (21) that are connected to the first through holes (31). The cover (4) includes several positioning pins (41) set on the cover (4) and inserted into the second through holes (21) through the first through holes (31), and several openings (42) set on the outer edge of the cover (4) that allow the fan blades (3) to extend out. The cover (4) is fixed to the motor (2) by a threaded connection.

2. The fan blade connection structure of the fan light according to claim 1, characterized in that, The cover (4) has a third through hole (43) through which the connecting shaft of the motor (2) can pass. The cover (4) has a groove (44) that cooperates with the fan blade (3). The positioning post (41) is set on the bottom surface of the groove (44).

3. The fan blade connection structure of the fan light according to claim 2, characterized in that, The bottom surface of the groove (44) is provided with ribs (45) that can support the fan blades (3), and the upper surface of the ribs (45) is flush with the bottom surface of the opening (42).

4. The fan blade connection structure of the fan light according to claim 2, characterized in that, A first threaded hole (46) is provided on the bottom surface of the groove (44) and between two adjacent fan blades (3). The bottom of the motor (2) is provided with several second threaded holes (22) that are connected to the first threaded hole (46). The cover (4) is provided with screws (5) that can pass through the first threaded hole (46) and lock into the second threaded hole (22).

5. The fan blade connection structure of the fan light according to claim 2, characterized in that, Both sides of the opening (42) are provided with elastic buckles (47) that can prevent the fan blade (3) from detaching from the groove (44).

6. A fan blade connection structure according to any one of claims 1 to 5, characterized in that, There are two first through holes (31), which are respectively located on the left and right ends of the fan blade (3).

7. The fan blade connection structure of a fan light according to claim 6, characterized in that, The bottom surface of the opening (42) is provided with a positioning protrusion (48) for positioning the fan blade (3). The fan blade (3) is provided with a positioning hole (32) that cooperates with the positioning protrusion (48). The positioning protrusion (48) is located on the axis of symmetry of the two first through holes (31).

8. The fan blade connection structure of the fan light according to claim 1, characterized in that, The inner sidewall of the outer edge of the cover (4) is provided with a positioning protrusion (49), and the outer sidewall of the motor (2) is provided with a positioning recess (23) that cooperates with the positioning protrusion (49).

9. The fan blade connection structure of the fan light according to claim 1, characterized in that, Sealing gaskets (6) are fitted on the positioning post (41) and at both the upper and lower ends of the fan blade (3).

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