Fan lamp

Abstract

The utility model relates to the technical field of life electric appliances, and provides a fan lamp which comprises a fan blade disc, fan blades, a driving part and a reset torsion spring, and the fan blades are arranged on the fan blade disc and rotationally connected with the fan blade disc; the driving part is connected with the fan blade disc and is configured to drive the fan blade disc to rotate and drive the fan blades to unfold relative to the fan blade disc; the reset torsion spring is connected between the fan blades and the fan blade disc and is configured to drive the fan blades to be folded relative to the fan blade disc. Wherein a torsional spring containing groove is formed in the side, facing the fan blade disc, of each fan blade, a first torsional spring limiting part is arranged in the torsional spring containing groove, a second torsional spring limiting part is arranged on the fan blade disc, the reset torsional spring is located in the torsional spring containing groove, one end of the reset torsional spring is connected with the first torsional spring limiting part, and the other end of the reset torsional spring is connected with the second torsional spring limiting part. According to the fan lamp, the reset torsion spring can be installed between the fan blades and the fan blade disc without additionally arranging a limiting piece and other structures, the number of structural components is small, and the assembling efficiency of the fan lamp is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of household appliances, in particular to a fan lamp. Background Art

[0002] A fan lamp is a device that combines lighting and fan functions. For aesthetics and to reduce dust accumulation on the fan blades, the fan blades of the fan lamp are usually set to be rotatable relative to the fan blade disc. When the fan function is needed, the fan blades rotate relative to the fan blade disc under the action of centrifugal force and extend out of the fan blade disc. When the fan function is not needed, the fan blades rotate relative to the fan blade disc in the opposite direction under the action of an elastic reset member (such as a reset torsion spring) and fold up on the fan blade disc.

[0003] To ensure the realization of the fan blade opening and closing function, a limiting member or other structures are usually arranged between the fan blade and the fan blade disc, or a limiting member or other structures are arranged on the surface of the fan blade disc facing away from the fan blade to provide an installation or connection point for the elastic reset member (such as a reset torsion spring). However, the setting of the limiting member increases the complexity of the fan blade installation structure and affects the assembly efficiency of the fan lamp. Summary of the Utility Model

[0004] In order to solve the above technical problems or at least partially solve the above technical problems, the utility model provides a fan lamp.

[0005] The utility model provides a fan lamp, comprising:

[0006] A fan blade disc;

[0007] Fan blades, arranged on the fan blade disc and rotatably connected to the fan blade disc;

[0008] A driving member, connected to the fan blade disc and configured to drive the fan blade disc to rotate and drive the fan blades to expand relative to the fan blade disc;

[0009] A reset torsion spring, connected between the fan blades and the fan blade disc and configured to drive the fan blades to close relative to the fan blade disc;

[0010] Wherein, a torsion spring accommodation groove is provided on the side of the fan blade facing the fan blade disc, a first torsion spring limiting portion is provided in the torsion spring accommodation groove, a second torsion spring limiting portion is provided on the fan blade disc, the reset torsion spring is located in the torsion spring accommodation groove, and one end of the reset torsion spring is connected to the first torsion spring limiting portion and the other end is connected to the second torsion spring limiting portion.

[0011] The fan lamp provided by the utility model realizes the installation of the return torsion spring in the torsion spring accommodating groove by providing a torsion spring accommodating groove on one side of the fan blade facing the fan blade disc. At the same time, a first torsion spring limiting part is provided in the torsion spring accommodating groove, and a second torsion spring limiting part is provided on the fan blade disc, so that one end of the return torsion spring is connected to the first torsion spring limiting part, and the other end is connected to the second torsion spring limiting part, thereby realizing the installation of the return torsion spring between the fan blade and the fan blade disc. When the fan blade needs to be unfolded, the driving part is used to drive the rotation of the fan blade disc and drive the fan blade to unfold relative to the fan blade disc to unfold the fan blade; when the fan blade needs to be folded, the return torsion spring is used to drive the fan blade to rotate and reset relative to the fan blade disc to fold the fan blade, thereby ensuring the realization of the opening and closing function of the fan blade. With such a setting, there is no need to additionally provide a limiting part or other structures between the fan blade and the fan blade disc, or on the side of the fan blade disc facing away from the fan blade, to realize the installation of the return torsion spring between the fan blade and the fan blade disc. The structure is simplified, the number of structural components is small, the complexity of the fan blade installation structure is reduced, and the assembly efficiency of the fan lamp is improved.

[0012] In some embodiments, the fan blade includes a fan blade main body and a mounting post formed at one end of the fan blade main body, and the fan blade rotates relative to the fan blade disc with the axis line of the mounting post as the axis.

[0013] In some embodiments, the torsion spring accommodating groove is formed on the end face of the mounting post facing the fan blade disc;

[0014] Two adjacent and spaced limiting ribs are provided on the inner groove wall of the torsion spring accommodating groove, and the two limiting ribs together constitute the first torsion spring limiting part, and one end of the return torsion spring is limited in the gap space formed between the two limiting ribs.

[0015] In some embodiments, a raised structure is provided on the bottom wall of the torsion spring accommodating groove, and the raised structure protrudes towards the opening direction of the torsion spring accommodating groove, and the main body part of the return torsion spring is sleeved on the raised structure.

[0016] In some embodiments, a raised limiting rib is formed on the surface of the fan blade disc facing the fan blade, and the limiting rib forms the second torsion spring limiting part, and the other end of the return torsion spring is limited in the limiting socket formed between the limiting rib and the fan blade disc.

[0017] In some embodiments, a rotation limiting part is provided on the outer peripheral surface of the mounting post, and a limiting cooperation part is provided on the surface of the fan blade disc facing the fan blade, and the rotation limiting part cooperates with the limiting cooperation part to limit the rotation angle of the fan blade on the fan blade disc.

[0018] In some embodiments, the rotation limiting part includes two limiting protrusions spaced circumferentially along the outer peripheral surface of the mounting post;

[0019] The limiting and mating part includes limiting convex parts corresponding to the two limiting protrusions. When the fan blades are unfolded, one of the limiting convex parts abuts against and limits one of the limiting protrusions. When the fan blades are folded, the other limiting convex part abuts against and limits the other limiting protrusion.

[0020] In some embodiments, the rotation limiting part includes a limiting protrusion provided on the outer peripheral surface of the mounting post;

[0021] The limiting and mating part includes two limiting convex parts corresponding to the limiting protrusion. The two limiting convex parts are spaced apart on the fan blade disc. When the fan blades are unfolded, one of the limiting convex parts abuts against and limits the limiting protrusion. When the fan blades are folded, the other limiting convex part abuts against and limits the limiting protrusion.

[0022] In some embodiments, a fan blade mounting hole is formed in the fan blade, and a fan blade fixing hole corresponding to the fan blade mounting hole is formed in the fan blade disc. The fan blade is mounted on the fan blade disc through a screw passing through the fan blade mounting hole and the fan blade fixing hole and a nut sleeved on the screw.

[0023] In some embodiments, the return torsion spring includes a torsion spring body arranged in a spiral shape and two torsion feet connected to the two end parts of the torsion spring body;

[0024] The height direction of the torsion spring body is arranged parallel to the axial direction of the fan blade disc. The screw passes through the torsion spring body, and the torsion spring body elastically supports between the fan blade and the fan blade disc along the axial direction of the fan blade disc.

[0025] In some embodiments, the number of the fan blades is multiple. The multiple fan blades are arranged on the fan blade disc at intervals along the circumferential direction of the fan blade disc, and the multiple fan blades are arranged independently of each other;

[0026] The number of the return torsion springs is equal to that of the fan blades, and they are arranged in one-to-one correspondence. A return torsion spring is connected between each fan blade and the fan blade disc. Description of the Drawings

[0027] The drawings here are incorporated into the description and form a part of this description, showing embodiments consistent with the present invention and used together with the description to explain the principles of the present invention.

[0028] In order to more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art. Obviously, for those of ordinary skill in the art, other drawings can also be obtained based on these drawings without creative efforts.

[0029] Figure 1 The structural schematic diagram of the fan blades of the fan light described in the embodiment of the present utility model in the closed state;

[0030] Figure 2 The exploded structural schematic diagram of the fan blades of the fan light described in the embodiment of the present utility model in the closed state;

[0031] Figure 3 The structural schematic diagram of the fan blades of the fan light described in the embodiment of the present utility model in the unfolded state;

[0032] Figure 4 The exploded structural schematic diagram of the fan blades of the fan light described in the embodiment of the present utility model in the unfolded state;

[0033] Figure 5 The structural schematic diagram of the blade disc of the fan light described in the embodiment of the present utility model;

[0034] Figure 6 The structural schematic diagram of the fan blades of the fan light described in the embodiment of the present utility model;

[0035] Figure 7 The assembly structural schematic diagram of the return torsion spring and the blade disc of the fan light described in the embodiment of the present utility model;

[0036] Figure 8 The assembly structural schematic diagram of the return torsion spring and the fan blades of the fan light described in the embodiment of the present utility model.

[0037] Wherein, 1. Blade disc; 11. Second torsion spring limiting part; 12. Limiting convex part; 13. Blade fixing hole; 14. Motor mounting hole; 2. Fan blade; 21. Torsion spring accommodating groove; 22. First torsion spring limiting part; 23. Blade main body; 24. Mounting column; 25. Limiting rib; 26. Limiting protrusion; 27. Blade mounting hole; 28. Protrusion structure; 3. Return torsion spring; 4. Screw; 5. Nut; 6. Driving part. Detailed implementation manners

[0038] In order to be able to more clearly understand the above-mentioned objects, features and advantages of the present utility model, the solution of the present utility model will be further described below. It should be noted that, without conflict, the embodiments of the present utility model and the features in the embodiments can be combined with each other.

[0039] Many specific details are set forth in the following description in order to fully understand the present utility model, but the present utility model can also be implemented in other ways different from those described herein; obviously, the embodiments in the specification are only a part of the embodiments of the present utility model, rather than all of the embodiments.

[0040] Refer to Figures 1 to 8As shown in the figure, a fan light provided by some embodiments of the present utility model includes a fan blade disc 1, fan blades 2, a driving member 6, and a reset torsion spring 3.

[0041] Among them, the fan blades 2 are arranged on the fan blade disc 1 and are rotationally connected to the fan blade disc 1; the driving member 6 is connected to the fan blade disc 1 and is configured to drive the fan blade disc 1 to rotate and drive the fan blades 2 to unfold relative to the fan blade disc 1 to unfold the fan blades 2. Specifically, the driving member 6 drives the fan blade disc 1 to rotate. During the rotation of the fan blade disc 1, a centrifugal force will be generated. The fan blades 2 will rotate relative to the fan blade disc 1 under the action of the centrifugal force, that is, the fan blades 2 will be thrown out in a direction away from the center of the fan blade disc 1 under the action of the centrifugal force to unfold the fan blades 2; after the fan blades 2 unfold relative to the fan blade disc 1, during the continuous rotation of the fan blade disc 1, the fan blades 2 will remain in the unfolded state under the action of the centrifugal force and rotate synchronously with the fan blade disc 1.

[0042] Exemplarily, the driving member 6 can be a driving mechanism such as a motor. The driving member 6 can be connected to the central part of the fan blade disc 1 to drive the fan blade disc 1 to rotate by using a driving mechanism such as a motor; the fan blades 2 can be arranged at the edge part of the fan blade disc 1. The fan blades 2 are rotationally connected to the fan blade disc 1. During the rotation of the fan blade disc 1, the fan blades 2 will be affected by the centrifugal force, so that the fan blades 2 rotate relative to the fan blade disc 1, thereby unfolding the fan blades 2.

[0043] The reset torsion spring 3 is connected between the fan blades 2 and the fan blade disc 1 and is configured to drive the fan blades 2 to close relative to the fan blade disc 1 to close the fan blades 2. Specifically, during the rotation of the fan blade disc 1, the fan blades 2 rotate relative to the fan blade disc 1 and unfold under the action of the centrifugal force, so that the reset torsion spring 3 connected between the fan blades 2 and the fan blade disc 1 is deformed and stores elastic potential energy; thus, when the driving member 6 stops driving, that is, after the driving member 6 stops providing the rotation function to the fan blade disc 1, the fan blade disc 1 will gradually decelerate to stop rotating. The centrifugal force generated by the rotation of the fan blade disc 1 will gradually decrease to disappear. The reset torsion spring 3 releases the elastic potential energy and returns to the state before deformation, so that the fan blades 2 rotate reversely relative to the fan blade disc 1 and reset under the elastic force of the reset torsion spring 3, thereby realizing the function of driving the fan blades 2 to reset by using the reset torsion spring 3, so that the fan blades 2 rotate relative to the fan blade disc 1 to the closed state.

[0044] With such a setting, by rotating the fan blades 2 relative to the fan blade disc 1, the fan blades 2 are unfolded or closed relative to the fan blade disc 1, that is, the opening and closing function of the fan blades 2 is realized.

[0045] Specifically, a torsion spring accommodating groove 21 is provided on the side of the fan blades 2 facing the fan blade disc 1. A first torsion spring limiting portion 22 is provided in the torsion spring accommodating groove 21. A second torsion spring limiting portion 11 is provided on the fan blade disc 1. The reset torsion spring 3 is located in the torsion spring accommodating groove 21, and one end of the reset torsion spring 3 is connected to the first torsion spring limiting portion 22, and the other end is connected to the second torsion spring limiting portion 11.

[0046] The fan lamp provided by the embodiment of the utility model realizes the installation of the reset torsion spring 3 in the torsion spring accommodating groove 21 by providing a torsion spring accommodating groove 21 on the side of the fan blade 2 facing the fan blade disc 1. At the same time, a first torsion spring limiting portion 22 is provided in the torsion spring accommodating groove 21, and a second torsion spring limiting portion 11 is provided on the fan blade disc 1, so that one end of the reset torsion spring 3 is connected to the first torsion spring limiting portion 22, and the other end is connected to the second torsion spring limiting portion 11, thereby realizing the installation of the reset torsion spring 3 between the fan blade 2 and the fan blade disc 1. When the fan blade 2 needs to be unfolded, the driving member 6 is used to drive the fan blade disc 1 to rotate and drive the fan blade 2 to unfold relative to the fan blade disc 1 to unfold the fan blade 2; when the fan blade 2 needs to be closed, the reset torsion spring 3 is used to drive the fan blade 2 to rotate relative to the fan blade disc 1 and reset to close the fan blade 2, thereby ensuring the realization of the opening and closing function of the fan blade 2. With such an arrangement, there is no need to provide additional structures such as limiters between the fan blades 2 and the fan disk 1, or on the side of the fan disk 1 facing away from the fan blades 2, so that the reset torsion spring 3 can be installed between the fan blades 2 and the fan disk 1. The structure is simplified, the number of structural components is reduced, the complexity of the installation structure of the fan blades 2 is reduced, and the assembly efficiency of the fan lamp is improved.

[0047] In order to enable the fan blade 2 to rotate relative to the fan disc 1, a mounting hole can be opened on the fan blade 2, and a through hole corresponding to the mounting hole can be opened on the fan disc 1. By means of a screw 4 passing through the mounting hole and the through hole, and a nut 5 mounted on the screw 4, the fan blade 2 can be installed on the fan disc 1, and the fan blade 2 can rotate relative to the fan disc 1 with the axial line of the screw 4 as the axis.

[0048] Furthermore, in order to enable the fan blades 2 to be expanded or closed relative to the fan disc 1, the mounting hole is opened at a position close to one end of the fan blade 2, so that when the fan disc 1 rotates, the fan blade 2 is subjected to the action of centrifugal force, and the other end of the fan blade 2 can be thrown out in a direction away from the center of the fan disc 1, thereby achieving the expansion of the fan blade 2; after the driving member 6 stops driving, the fan disc 1 gradually slows down to stop rotating, and under the action of the elastic force of the return torsion spring 3, the other end of the fan blade 2 can be retracted in a direction close to the center of the fan disc 1, thereby achieving the closure of the fan blade 2.

[0049] It should be noted that the number of the fan blades 2 can be multiple, such as three, four, etc., and the multiple fan blades 2 are arranged at intervals along the circumference of the fan blade disk 1 at the edge of the fan blade disk 1.

[0050] In some embodiments, reference Figures 1 to 4 As shown, the fan blade 2 includes a fan blade body 23 and a mounting post 24 formed at one end of the fan blade body 23. The fan blade 2 rotates relative to the fan blade disk 1 with the axis of the mounting post 24 as the axis. In this way, the mounting post 24 is used as a structure that is rotatably connected to the fan blade disk 1, and it is convenient to set the torsion spring accommodating groove 21, the first torsion spring limiting portion 22 and other structures on the mounting post 24.

[0051] Specifically, an installation post 24 can be provided at one end of the fan blade body 23. The installation post 24 protrudes and extends relative to the fan blade body 23 in the direction towards the side where the fan blade disc 1 is located. An installation hole is formed at one end of the installation post 24 facing the fan blade disc 1, and a through hole corresponding to the installation hole is formed on the fan blade disc 1. A screw 4 is used to pass through the installation hole on the installation post 24 and the through hole on the fan blade disc 1, and a nut 5 is sleeved on the protruding end of the screw 4, so that the installation post 24 is rotationally connected to the fan blade disc 1 through the screw 4 and the nut 5. Of course, the rotational connection manner between the installation post 24 and the fan blade disc 1 is not limited to the above description, and a bearing or the like can also be added between the two to realize the rotational connection between the installation post 24 and the fan blade disc 1.

[0052] In some embodiments, referring to Figure 6 and Figure 8 as shown, a torsion spring accommodating groove 21 is formed on the side end face of the installation post 24 facing the fan blade disc 1; two adjacent and spaced limiting ribs 25 are provided on the inner groove wall of the torsion spring accommodating groove 21, and the two limiting ribs 25 together constitute a first torsion spring limiting portion 22. One end of the return torsion spring 3 is limited in the gap space formed between the two limiting ribs 25. With such a setting, the installation and fixation of the return torsion spring 3 on the fan blade 2 are realized, and the structure is simple and the assembly is convenient.

[0053] Specifically, the installation post 24 can be of a cylindrical structure, and the torsion spring accommodating groove 21 formed on the installation post 24 can be a groove-like structure with an annular inner wall, so as to be adapted to the shape of the return torsion spring 3 and facilitate the installation of the return torsion spring 3; further, in order to realize the stability of the installation of the return torsion spring 3 in the torsion spring accommodating groove 21, a convex structure 28 can be provided on the bottom wall of the torsion spring accommodating groove 21. The convex structure 28 protrudes towards the notch direction of the torsion spring accommodating groove 21, and the main body part of the return torsion spring 3 is sleeved on the convex structure 28 to position the installation of the return torsion spring 3 by using the convex structure 28; the shape of the convex structure 28 is not limited herein. Exemplarily, the convex structure 28 can be in the shape of a gear.

[0054] In some embodiments, referring to Figure 5 and Figure 7 as shown, a raised limiting rib is formed on the side surface of the fan blade disc 1 facing the fan blade 2. The limiting rib is formed as a second torsion spring limiting portion 11, and the other end of the return torsion spring 3 is limited in the limiting insertion opening formed between the limiting rib and the fan blade disc 1. With such a setting, by performing simple operations such as stamping on the corresponding part of the fan blade disc 1, the limiting rib structure can be formed on the fan blade disc 1, and the structure is simple and the forming is convenient; when assembling the return torsion spring 3, only the other end of the return torsion spring 3 needs to be inserted into the limiting insertion opening formed between the limiting rib and the fan blade disc 1, and the operation is simple, time-saving and labor-saving.

[0055] Of course, the specific structure of the second torsion spring limiting portion 11 is not limited to the above definition, as long as it can limit the other end of the return torsion spring 3.

[0056] In a specific embodiment, refer to Figures 5 to 8 As shown, the return torsion spring 3 includes a torsion spring body arranged in a spiral shape and two torsion feet connected to the two ends of the torsion spring body. During specific assembly, the return torsion spring 3 is placed in the torsion spring accommodation groove 21 on the fan blade 2, and the torsion spring body of the return torsion spring 3 is sleeved on the convex structure 28 arranged on the bottom wall of the torsion spring accommodation groove 21 to position the installation of the return torsion spring 3 by using the convex structure 28. Then, one torsion foot at one end of the return torsion spring 3 is inserted into the gap space formed between the two limiting ribs 25, and the torsion foot at the other end of the return torsion spring 3 is inserted into the limiting insertion opening formed between the limiting rib and the fan blade disc 1, so as to realize the installation of the return torsion spring 3 between the fan blade 2 and the fan blade disc 1.

[0057] In some embodiments, refer to Figures 1 to 4 As shown, the fan blade 2 is provided with a rotation limiting portion, and the surface of the fan blade disc 1 facing the fan blade 2 is provided with a limiting cooperation portion. The rotation limiting portion cooperates with the limiting cooperation portion to limit the rotation angle of the fan blade 2 on the fan blade disc 1. With such a setting, the fan blade 2 can rotate relative to the fan blade disc 1 within a certain angle range, that is, the fan blade 2 can perform an unfolding or closing action within a certain angle range.

[0058] Specifically, refer to Figure 6 As shown, a rotation limiting portion is provided on the outer peripheral surface of the mounting post 24 of the fan blade 2. Refer to Figure 5 As shown, the surface of the fan blade disc 1 facing the fan blade 2 is provided with a limiting cooperation portion. The rotation limiting portion cooperates with the limiting cooperation portion to limit the rotation angle of the fan blade 2 on the fan blade disc 1.

[0059] In some embodiments, refer to Figure 6 and Figure 8 As shown, the rotation limiting portion includes two limiting protrusions 26 spaced circumferentially along the outer peripheral surface of the mounting post 24; refer to Figure 5 and Figure 7 As shown, the limiting cooperation portion includes limiting convex portions 12 corresponding to the two limiting protrusions 26. When the fan blade 2 is unfolded, the limiting convex portion 12 abuts against and limits one of the limiting protrusions 26. When the fan blade 2 is closed, the limiting convex portion 12 abuts against and limits the other limiting protrusion 26.

[0060] Specifically, refer to Figure 3 and Figure 4As shown, it is a schematic structural diagram of the fan blade 2 in the unfolded state. When the fan function needs to be used, the driving member 6 drives the fan blade disk 1 to rotate. The rotating fan blade disk 1 applies a centrifugal force to the fan blade 2 in the direction away from the center of the fan blade disk 1, causing the fan blade 2 to rotate and unfold relative to the fan blade disk 1 until one of the limiting protrusions 26 on the fan blade 2 abuts against and is limited by the limiting convex portion 12 on the fan blade disk 1 (specifically, one side surface of the limiting convex portion 12), so that the fan blade 2 cannot continue to rotate in the direction away from the center of the fan blade disk 1, and the relative position between the fan blade 2 and the fan blade disk 1 is kept stable, and the fan blade 2 remains in the unfolded state; Refer to Figure 1 and Figure 2 As shown, it is a schematic structural diagram of the fan blade 2 in the folded state. When the fan function needs to be turned off, the driving member 6 stops driving, that is, the driving member 6 stops providing rotational kinetic energy to the fan blade disk 1. The fan blade disk 1 gradually decelerates until it stops rotating, and the centrifugal force slowly decreases until it disappears. The torsion of the return torsion spring 3 overcomes the centrifugal force to reset the fan blade 2. The fan blade 2 is subjected to an elastic force applied by the return torsion spring 3 in the direction towards the center of the fan blade disk 1, causing the fan blade 2 to rotate and reset relative to the fan blade disk 1 until the other limiting protrusion 26 on the fan blade 2 abuts against and is limited by the limiting convex portion 12 on the fan blade disk 1 (specifically, the other side surface of the limiting convex portion 12), so that the fan blade 2 cannot continue to rotate in the direction towards the center of the fan blade disk 1, and the relative position between the fan blade 2 and the fan blade disk 1 is kept stable, and the fan blade 2 remains in the folded state.

[0061] It should be noted that the limiting convex portion 12 on the fan blade disk 1 can specifically be a limiting tab, and the limiting tab can be directly formed by stamping on the fan blade disk 1; Of course, the limiting convex portion 12 can also be a protrusion or other structures provided on the fan blade disk 1.

[0062] In some other embodiments, the rotation limiting portion includes a limiting protrusion 26 provided on the outer peripheral surface of the mounting post 24; the limiting cooperation portion includes two limiting convex portions 12 corresponding to the limiting protrusion 26, and the two limiting convex portions 12 are spaced apart on the fan blade disk 1. When the fan blade 2 unfolds, one of the limiting convex portions 12 abuts against and is limited by the limiting protrusion 26, and when the fan blade 2 folds, the other limiting convex portion 12 abuts against and is limited by the limiting protrusion 26.

[0063] Specifically, when the fan function needs to be used, the driving member 6 drives the fan blade disc 1 to rotate. The rotating fan blade disc 1 applies a centrifugal force to the fan blades 2 in a direction away from the center of the fan blade disc 1, causing the fan blades 2 to rotate relative to the fan blade disc 1 and unfold until the limiting protrusions 26 on the fan blades 2 abut against and are limited by one of the limiting protrusions 12 on the fan blade disc 1, preventing the fan blades 2 from continuing to rotate in the direction away from the center of the fan blade disc 1. The relative position between the fan blades 2 and the fan blade disc 1 is kept stable, and the fan blades 2 remain in the unfolded state. When the fan function needs to be turned off, the driving member 6 stops driving, the fan blade disc 1 gradually decelerates until it stops rotating, the centrifugal force slowly decreases until it disappears, and the torsion of the return torsion spring 3 overcomes the centrifugal force to reset the fan blades 2. The fan blades 2 are subjected to an elastic force applied by the return torsion spring 3 in a direction towards the center of the fan blade disc 1, causing the fan blades 2 to rotate relative to the fan blade disc 1 in the reverse direction and reset until the limiting protrusions 26 on the fan blades 2 abut against and are limited by another limiting protrusion 12 on the fan blade disc 1, preventing the fan blades 2 from continuing to rotate in the direction towards the center of the fan blade disc 1. The relative position between the fan blades 2 and the fan blade disc 1 is kept stable, and the fan blades 2 remain in the closed state.

[0064] It should be noted that the number of the limiting protrusions 26 on the fan blades 2 and the limiting protrusions 12 on the fan blade disc 1 is not limited to the above-mentioned limitation. Exemplarily, the number of both the limiting protrusions 26 and the limiting protrusions 12 can be two. When the fan blades 2 are unfolded, one of the limiting protrusions 26 abuts against and is limited by one of the limiting protrusions 12, and when the fan blades 2 are closed, the other limiting protrusion 26 abuts against and is limited by the other limiting protrusion 12, which is also feasible.

[0065] In some embodiments, referring to Figures 1 to 4 as shown, the fan blades 2 are provided with fan blade mounting holes 27, and the fan blade disc 1 is provided with fan blade fixing holes 13 corresponding to the fan blade mounting holes 27. The fan blades 2 are mounted on the fan blade disc 1 by screws 4 passing through the fan blade mounting holes 27 and the fan blade fixing holes 13, and nuts 5 sleeved on the screws 4. In this way, the installation of the fan blades 2 on the fan blade disc 1 is realized, and the fan blades 2 can rotate relative to the fan blade disc 1 with the axis of the screw 4 as the axis.

[0066] In some embodiments, referring to Figure 1 and Figure 3 as shown, the return torsion spring 3 includes a torsion spring body arranged in a spiral shape and two torsion feet connected to both ends of the torsion spring body; the height direction of the torsion spring body is arranged parallel to the axial direction of the fan blade disc 1, the screw 4 passes through the torsion spring body, and the torsion spring body is elastically supported between the fan blades 2 and the fan blade disc 1 along the axial direction of the fan blade disc 1. In this way, it is realized that the return torsion spring 3 is elastically supported between the fan blades 2 and the fan blade disc 1 along the axial direction of the fan blade disc 1, so that the fan blades 2 and the fan blade disc 1 do not directly contact, thereby reducing the friction force when the fan blades 2 rotate relative to the fan blade disc 1, improving the smoothness of the rotation of the fan blades 2, and reducing the noise generated by friction.

[0067] In some embodiments, the number of fan blades 2 is multiple, and the multiple fan blades 2 are arranged at intervals along the circumferential direction of the fan disk 1 on the fan disk 1, and the multiple fan blades 2 are arranged independently of each other; the number of the return torsion springs 3 is equal to that of the fan blades 2, and they are arranged in one-to-one correspondence, and a return torsion spring 3 is connected between each fan blade 2 and the fan disk 1. With such a setting, the multiple fan blades 2 can rotate independently of each other, which is convenient for operations such as installation and maintenance of a single fan blade 2 on the fan disk 1.

[0068] Specifically, it can be selected that the number of both the fan blades 2 and the return torsion springs 3 is three. The three fan blades 2 are arranged at intervals along the circumferential direction of the fan disk 1. There are three second torsion spring limiting parts 11 on the fan disk 1, and the three second torsion spring limiting parts 11 are arranged at intervals along the circumferential direction of the fan disk 1. The three return torsion springs 3 are respectively installed in the torsion spring accommodating grooves 21 formed on the three fan blades 2, and the three return torsion springs 3 are respectively connected to the three second torsion spring limiting parts 11 in one-to-one correspondence, so as to realize that the three fan blades 2 can rotate independently of each other; of course, it can also be selected that the number of both the fan blades 2 and the return torsion springs 3 is other numbers, and the number of the fan blades 2 is equal to that of the return torsion springs 3, and they are connected in one-to-one correspondence.

[0069] In some embodiments, referring to FIGS. 1 to Figure 4 As shown, the driving member 6 is a motor, so as to drive the fan disk 1 to rotate through the motor. With such a setting, the motor can control the rotation and stop of the fan disk 1. When it is necessary to blow air with the fan lamp, the motor drives the fan disk 1 to rotate, so that the fan blades 2 are unfolded, and the fan blades 2 drive the air to flow, which is convenient for the user to independently turn on and off the fan function of the fan lamp.

[0070] Specifically, the motor can be installed at the center of the fan disk 1, so that the motor can drive the fan disk 1 to rotate around its own axis after starting. The motor can be selected to be connected to the fan disk 1 with bolts. Specifically, there are multiple motor mounting holes 14 at the center of the fan disk 1, and the motor is installed on the fan disk 1 through the bolts passing through the motor and the motor mounting holes 14. Of course, other connection methods such as snap connection and riveting can also be selected to connect with the fan disk 1.

[0071] When specifically assembling the fan lamp provided by the embodiment of the present utility model, four screws 4 can be used to first fix the motor on the fan disk 1; then hook one end of the return torsion spring 3 at the second torsion spring limiting part 11 formed on the fan disk 1, fix the other end of the return torsion spring 3 at the first torsion spring limiting part 22 formed on the fan blade 2, and press the return torsion spring 3 with the fan blade 2, and then use the screw 4 to pass through the mounting hole on the fan blade 2 and the through hole on the fan disk 1 and lock it with the nut 5, then one fan blade 2 can be fixed, and the other two fan blades 2 can be fixed in the same way.

[0072] During specific use, when the blowing function of the fan light is turned on, the motor drives the fan blade disc 1 to rotate. As the fan blade disc 1 rotates, under the action of centrifugal force, the fan blades 2 overcome the torsion force of the return torsion spring 3 and the three fan blades 2 are thrown out. When one of the limit protrusions 26 on the fan blade 2 contacts the corresponding limit protrusion 12 on the fan blade disc 1, the fan blade 2 reaches the maximum extended angle, and the fan blade 2 maintains this angle to rotate and supply air. Refer to Figure 3 as shown;

[0073] When the blowing function of the fan light is turned off, the motor stops providing rotational kinetic energy to the fan blade disc 1, and the centrifugal force gradually decreases until it disappears. The torsion force of the return torsion spring 3 overcomes the centrifugal force to reset the fan blade 2 until another limit protrusion 26 on the fan blade 2 contacts the corresponding limit protrusion 12 on the fan blade disc 1, and the reset is completed. The fan blade 2 remains in the closed state. Refer to Figure 1 as shown.

[0074] It should be noted that in this article, relational terms such as "first" and "second" are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the term "comprising", "including" or any other variant thereof is intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements not only includes those elements, but also includes other elements not expressly listed, or also includes elements inherent to such process, method, article or device. Without further limitation, an element defined by the statement "including a..." does not exclude the existence of additional identical elements in the process, method, article or device including the said element.

[0075] The above are only specific implementation manners of the present utility model, enabling those skilled in the art to understand or implement the present utility model. Various modifications to these embodiments will be obvious to those skilled in the art. The general principles defined herein can be implemented in other embodiments without departing from the spirit or scope of the present utility model. Therefore, the present utility model will not be limited to these embodiments described herein, but rather will conform to the widest scope consistent with the principles and novel features of the present utility model described herein.

Claims

1. A fan light, characterized in that, Comprising: A fan blade disc; Fan blades, disposed on the fan blade disc and rotatably connected to the fan blade disc; A driving member, connected to the fan blade disc and configured to drive the fan blade disc to rotate and drive the fan blades to unfold relative to the fan blade disc; A reset torsion spring, connected between the fan blades and the fan blade disc and configured to drive the fan blades to close relative to the fan blade disc; Wherein, a torsion spring accommodation groove is provided on one side of the fan blade facing the fan blade disc, a first torsion spring limiting portion is provided in the torsion spring accommodation groove, a second torsion spring limiting portion is provided on the fan blade disc, the reset torsion spring is located in the torsion spring accommodation groove, and one end of the reset torsion spring is connected to the first torsion spring limiting portion and the other end is connected to the second torsion spring limiting portion; Wherein, a raised limiting rib is formed on one side surface of the fan blade disc facing the fan blade, the limiting rib forms the second torsion spring limiting portion, and the other end of the reset torsion spring is limited in a limiting insertion opening formed between the limiting rib and the fan blade disc.

2. The ceiling fan light according to claim 1, wherein The fan blade includes a fan blade main body and a mounting post formed at one end of the fan blade main body, and the fan blade rotates relative to the fan blade disc with the axis line of the mounting post as the axis.

3. The ceiling fan light according to claim 2, wherein The torsion spring accommodation groove is formed on one side end surface of the mounting post facing the fan blade disc; Two adjacent and spaced limiting ribs are provided on the inner groove wall of the torsion spring accommodation groove, and the two limiting ribs together constitute the first torsion spring limiting portion, and one end of the reset torsion spring is limited in the gap space formed between the two limiting ribs.

4. The ceiling fan light according to claim 2, wherein A raised structure is provided on the bottom wall of the torsion spring accommodation groove, the raised structure protrudes towards the groove opening direction of the torsion spring accommodation groove, and the main body portion of the reset torsion spring is sleeved on the raised structure.

5. The ceiling fan light according to claim 2, wherein, A rotation limiting portion is provided on the outer peripheral surface of the mounting post, and a limiting cooperation portion is provided on one side surface of the fan blade disc facing the fan blade, and the rotation limiting portion cooperates with the limiting cooperation portion to limit the rotation angle of the fan blade on the fan blade disc.

6. The ceiling fan light according to claim 5, wherein, The rotation limiting portion includes two circumferentially spaced limiting protrusions along the outer peripheral surface of the mounting post, the limiting cooperation portion includes limiting protrusions corresponding to the two limiting protrusions, when the fan blade unfolds, the limiting protrusion abuts and limits against one of the limiting protrusions, and when the fan blade closes, the limiting protrusion abuts and limits against the other limiting protrusion; Alternatively, the rotation limiting portion includes a limiting protrusion provided on the outer peripheral surface of the mounting post, the limiting cooperation portion includes two limiting protrusions corresponding to the limiting protrusion, the two limiting protrusions are spaced apart on the fan blade disc, when the fan blade unfolds, one of the limiting protrusions abuts and limits against the limiting protrusion, and when the fan blade closes, the other limiting protrusion abuts and limits against the limiting protrusion.

7. The ceiling fan light according to any one of claims 1 to 6, characterized in that A fan blade mounting hole is provided on the fan blade, a fan blade fixing hole corresponding to the fan blade mounting hole is provided on the fan blade disc, and the fan blade is mounted on the fan blade disc through a screw passing through the fan blade mounting hole and the fan blade fixing hole and a nut sleeved on the screw.

8. The ceiling fan light according to claim 7, wherein The reset torsion spring includes a torsion spring body arranged in a spiral shape and two torsion feet connected to both end portions of the torsion spring body; The height direction of the torsion spring body is arranged parallel to the axial direction of the fan blade disc, the screw passes through the torsion spring body, and the torsion spring body is elastically supported between the fan blade and the fan blade disc along the axial direction of the fan blade disc.

9. The ceiling fan light according to any one of claims 1 to 6, characterized in that, The number of the fan blades is multiple, and the multiple fan blades are arranged on the fan blade disc at intervals in the circumferential direction of the fan blade disc, and the multiple fan blades are arranged independently of each other; The number of the reset torsion springs is equal to the number of the fan blades, and they are arranged in one-to-one correspondence, and one of the reset torsion springs is connected between each fan blade and the fan blade disc.

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