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 an elastic reset part, 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 elastic reset piece 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. The side, facing the fan blade disc, of each fan blade is provided with a limiting groove, the groove wall of the inner side of each limiting groove is provided with a rotating limiting part, the fan blade disc is provided with a limiting matching part corresponding to the rotating limiting part, and the rotating limiting parts are matched with the limiting matching parts on the inner sides of the limiting grooves so as to limit the rotating angle of the fan blades on the fan blade disc. According to the fan lamp provided by the utility model, the rotation limiting part and the limiting matching part are hidden in the limiting groove of the fan blade, so that the fan lamp is more attractive, and meanwhile, the occupied space of the rotation limiting structure is reduced, so that other structures can be conveniently arranged.

Description

Technical Field

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

[0002] A ceiling fan light is a device that combines lighting and fan functions. For aesthetic reasons and to reduce dust accumulation on the fan blades, the fan blades of the ceiling fan light are usually configured 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 in the opposite direction relative to the fan blade disc under the action of the elastic reset member and fold back onto the fan blade disc.

[0003] To ensure the realization of the opening and closing function of the fan blades, a limiting convex portion for restricting the rotation angle of the fan blades is usually provided on the outer circumferential surface of the fan blades, and a limiting protrusion cooperating with the limiting convex portion is provided on the fan blade disc. However, this structure results in many exposed structural components on the fan blades and the fan blade disc, which not only affects the aesthetics but also causes the limiting convex portion and the limiting protrusion to occupy a large amount of space on the fan blades and the fan blade disc, affecting the layout of other structures on the fan blades and the fan blade disc, and increasing the processing difficulty of the ceiling fan light. 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 ceiling fan light.

[0005] The utility model provides a ceiling fan light, 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 unfold relative to the fan blade disc;

[0009] An elastic reset member, connected between the fan blades and the fan blade disc and configured to drive the fan blades to fold relative to the fan blade disc;

[0010] Wherein, a limiting groove is provided on one side of the fan blade facing the fan blade disc, a rotation limiting portion is provided on the inner groove wall of the limiting groove, a limiting cooperation portion corresponding to the rotation limiting portion is provided on the fan blade disc, and the rotation limiting portion and the limiting cooperation portion cooperate inside the limiting groove to limit the rotation angle of the fan blade on the fan blade disc.

[0011] The ceiling fan light provided by the present utility model has a limiting groove provided on one side of the fan blade facing the fan blade disc, and a rotation limiting portion is provided on the inner groove wall of the limiting groove. At the same time, a limiting matching portion corresponding to the rotation limiting portion is provided on the fan blade disc. With such a setting, the rotation limiting portion is hidden in the limiting groove formed on the fan blade, and the rotation limiting portion cooperates with the limiting matching portion to hide both the rotation limiting portion and the limiting matching portion in the limiting groove by using the limiting groove. As a result, on the outside of the ceiling fan light, the rotation limiting portion on the fan blade and the limiting matching portion on the fan blade disc cannot be seen, making the ceiling fan light more beautiful. At the same time, by hiding the rotation limiting portion and the limiting matching portion in the limiting groove, compared with setting the rotation limiting portion on the outer peripheral surface of the fan blade, the space occupied by the rotation limiting portion on the fan blade can be reduced, and correspondingly, the space occupied by the limiting matching portion corresponding to the rotation limiting portion on the fan blade disc can be reduced, so as to facilitate the layout of other structures on the fan blade and the fan blade disc, thereby reducing the layout difficulty of the structural components on the ceiling fan light, and further reducing the processing difficulty of the ceiling fan light.

[0012] In some embodiments, the rotation limiting portion includes a limiting convex portion provided on the inner groove wall of the limiting groove, and the limiting convex portion has a first limiting abutting surface and a second limiting abutting surface that are arranged back to back along the rotation direction of the fan blade;

[0013] The limiting matching portion includes at least one limiting protrusion provided on the surface of the fan blade disc facing the fan blade. When the fan blade is unfolded, the first limiting abutting surface abuts against and limits the limiting protrusion, and when the fan blade is folded, the second limiting abutting surface abuts against and limits the limiting protrusion.

[0014] In some embodiments, the limiting matching portion includes two limiting protrusions, and the two limiting protrusions are arranged at intervals along the rotation direction of the fan blade. When the fan blade is unfolded, the first limiting abutting surface abuts against and limits one of the limiting protrusions, and when the fan blade is folded, the second limiting abutting surface abuts against and limits the other limiting protrusion.

[0015] In some embodiments, the elastic resetting member is a reset torsion spring, and the reset torsion spring is located in the limiting groove;

[0016] A first torsion spring limiting portion is provided in the limiting groove, and a second torsion spring limiting portion is provided on the fan blade disc. 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.

[0017] In some embodiments, the limiting convex portion includes two limiting ribs, and the two limiting ribs are adjacent and spaced along the circumference of the inner groove wall of the limiting groove;

[0018] 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.

[0019] 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.

[0020] 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. The fan blade rotates relative to the fan blade disc with the axis line of the mounting post as the axis, and the limiting groove is formed on the end face of the mounting post facing the fan blade disc.

[0021] In some embodiments, a fan blade mounting hole is formed on the fan blade, and a fan blade fixing hole corresponding to the fan blade mounting hole is formed on 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.

[0022] In some embodiments, the elastic reset member is a return torsion spring, and the return torsion spring includes a torsion spring main body arranged in a spiral shape and two torsion feet connected to both ends of the torsion spring main body;

[0023] The height direction of the torsion spring main body is arranged parallel to the axial direction of the fan blade disc, the screw passes through the torsion spring main body, and the torsion spring main body elastically supports between the fan blade and the fan blade disc along the axial direction of the fan blade disc.

[0024] In some embodiments, the number of the fan blades is multiple, and 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;

[0025] The number of the elastic reset members is equal to the number of the fan blades, and they are arranged in one-to-one correspondence, and one elastic reset member is connected between each fan blade and the fan blade disc. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] The accompanying drawings here are incorporated into the specification and constitute a part of this specification, showing the embodiments consistent with the present invention, and are used together with the specification to explain the principles of the present invention.

[0027] 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 accompanying 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.

[0028] Figure 1 Schematic structural diagram of the fan blades of the fan light according to the embodiment of the present utility model in the closed state;

[0029] Figure 2 Exploded structural diagram of the fan blades of the fan light according to the embodiment of the present utility model in the closed state;

[0030] Figure 3 Schematic structural diagram of the fan blades of the fan light according to the embodiment of the present utility model in the unfolded state;

[0031] Figure 4 Exploded structural diagram of the fan blades of the fan light according to the embodiment of the present utility model in the unfolded state;

[0032] Figure 5 Schematic structural diagram of the fan blade disc of the fan light according to the embodiment of the present utility model;

[0033] Figure 6 Schematic structural diagram of the fan blades of the fan light according to the embodiment of the present utility model;

[0034] Figure 7 Schematic assembly structure diagram of the elastic reset member and the fan blade disc of the fan light according to the embodiment of the present utility model;

[0035] Figure 8 Schematic assembly structure diagram of the elastic reset member and the fan blades of the fan light according to the embodiment of the present utility model.

[0036] Wherein, 1. Fan blade disc; 11. Limit cooperation part; 111. Limit protrusion; 12. Second torsion spring limit part; 13. Fan blade fixing hole; 14. Motor mounting hole; 2. Fan blade; 21. Limit groove; 22. Rotation limit part; 221. First limit abutting surface; 222. Second limit abutting surface; 23. First torsion spring limit part; 24. Fan blade mounting hole; 25. Protrusion structure; 26. Fan blade body; 27. Mounting post; 3. Elastic reset member; 4. Screw; 5. Nut; 6. Driving member. Detailed implementation manners

[0037] 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.

[0038] 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.

[0039] Referring to Figures 1 to 8 As shown, 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 an elastic reset member 3.

[0040] Among them, the fan blades 2 are arranged on the fan blade disc 1 and are rotatably 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 is generated. The fan blades 2 are affected by the centrifugal force and will rotate relative to the fan blade disc 1, 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.

[0041] 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 rotatably 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, causing the fan blades 2 to rotate relative to the fan blade disc 1, thereby unfolding the fan blades 2. The number of the fan blades 2 can be multiple, such as three, four, etc. The multiple fan blades 2 are arranged at intervals along the circumferential direction of the fan blade disc 1 at the edge part of the fan blade disc 1.

[0042] The elastic reset member 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 process of the driving member 6 driving the fan blade disc 1 to rotate, the fan blades 2 are affected by the centrifugal force and rotate and unfold relative to the fan blade disc 1, causing the elastic reset member 3 connected between the fan blades 2 and the fan blade disc 1 to deform and store 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 elastic reset member 3 releases the elastic potential energy and returns to the state before deformation, causing the fan blades 2 to rotate reversely and reset relative to the fan blade disc 1 under the elastic force of the elastic reset member 3, thereby realizing the function of driving the fan blades 2 to reset by using the elastic reset member 3, so that the fan blades 2 rotate relative to the fan blade disc 1 to the closed state.

[0043] With such a setting, by the rotation of the fan blades 2 relative to the fan blade disc 1, the unfolding or closing of the fan blades 2 relative to the fan blade disc 1 is realized, that is, the opening and closing function of the fan blades 2 is realized.

[0044] It should be noted that 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 using the screw 4 passing through the mounting hole and the through hole, and the 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.

[0045] Furthermore, in order to enable the fan blades 2 to be expanded or closed relative to the fan blade disk 1, the mounting hole can be opened at a position close to one end of the fan blade 2, so that when the fan blade disk 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 blade disk 1, thereby achieving the expansion of the fan blade 2; after the driving member 6 stops driving, the fan blade disk 1 gradually slows down to stop rotating, the centrifugal force gradually decreases to disappear, and the fan blade 2 is subjected to the elastic force of the elastic reset member 3, and the other end of the fan blade 2 can be retracted in a direction close to the center of the fan blade disk 1, thereby achieving the closure of the fan blade 2.

[0046] Among them, a limiting groove 21 is provided on the side of the fan blade 2 facing the fan disc 1, and a rotation limiting portion 22 is provided on the inner groove wall of the limiting groove 21. A limiting matching portion 11 corresponding to the rotation limiting portion 22 is provided on the fan disc 1. The rotation limiting portion 22 cooperates with the limiting matching portion 11 inside the limiting groove 21 to limit the rotation angle of the fan blade 2 on the fan disc 1.

[0047] It should be noted that the rotation limit portion 22 cooperates with the limit matching portion 11 inside the limit groove 21, that is, after the fan blade 2 and the fan blade disc 1 are assembled, the limit matching portion 11 is located in the inner area of the limit groove 21, and is limitedly matched with the rotation limit portion 22 on the inner groove wall of the limit groove 21 in the inner area of the limit groove 21, that is, the rotation limit portion 22 and the limit matching portion 11 are hidden in the limit groove 21, and the rotation limit portion 22 and the limit matching portion 11 cannot be seen outside the limit groove 21.

[0048] The ceiling fan lamp provided by the embodiment of the present utility model is provided with a limiting groove 21 on one side of the fan blade 2 facing the fan blade disc 1, and a rotation limiting portion 22 is provided on the inner groove wall of the limiting groove 21. At the same time, a limiting cooperation portion 11 corresponding to the rotation limiting portion 22 is provided on the fan blade disc 1. With such a setting, the rotation limiting portion 22 is hidden in the limiting groove 21 formed on the fan blade 2, and when the rotation limiting portion 22 cooperates with the limiting cooperation portion 11, the rotation limiting portion 22 and the limiting cooperation portion 11 can also be hidden in the limiting groove 21 by using the limiting groove 21. Therefore, on the outside of the ceiling fan lamp, the rotation limiting portion 22 on the fan blade 2 and the limiting cooperation portion 11 on the fan blade disc 1 cannot be seen, making the ceiling fan lamp more beautiful. At the same time, by hiding the rotation limiting portion 22 and the limiting cooperation portion 11 in the limiting groove 21, compared with setting the rotation limiting portion 22 on the outer peripheral surface of the fan blade 2, the space occupied by the rotation limiting portion 22 on the fan blade 2 can be reduced, and at the same time, the space occupied by the limiting cooperation portion 11 corresponding to the rotation limiting portion 22 on the fan blade disc 1 can be correspondingly reduced, so as to facilitate the layout of other structures on the fan blade 2 and the fan blade disc 1, thereby reducing the layout difficulty of the structural components on the ceiling fan lamp, and further reducing the processing difficulty of the ceiling fan lamp.

[0049] In some embodiments, the rotation limiting portion 22 includes a limiting convex portion provided on the inner groove wall of the limiting groove 21, and the limiting convex portion has a first limiting abutting surface 221 and a second limiting abutting surface 222 arranged opposite to each other along the rotation direction of the fan blade 2; in other words, the limiting convex portion has a first side surface and a second side surface arranged opposite to each other along the rotation direction of the fan blade 2, the first side surface forms the first limiting abutting surface 221, and the second side surface forms the second limiting abutting surface 222. The limiting cooperation portion 11 includes at least one limiting protrusion 111 provided on the surface of the fan blade disc 1 facing the fan blade 2. That is to say, one limiting protrusion 111 corresponding to the rotation limiting portion 22 can be provided on the surface of the fan blade disc 1 facing the fan blade 2, or two limiting protrusions 111 corresponding to the rotation limiting portion 22 can be provided. That is, the number of the limiting protrusions 111 is not limited to one, and can also be two or more.

[0050] Specifically, when the fan blade 2 is unfolded, the first limiting abutting surface 221 abuts against the limiting protrusion 111 for limiting, and when the fan blade 2 is folded, the second limiting abutting surface 222 abuts against the limiting protrusion 111 for limiting. With such a setting, the fan blade 2 can rotate relative to the fan blade disc 1 within the range defined between the first limiting abutting surface 221 and the second limiting abutting surface 222, that is, the fan blade 2 rotates forward or backward relative to the fan blade disc 1 within the limited angle range to realize the unfolding or folding action of the fan blade 2.

[0051] In some embodiments, referring to Figure 6 and Figure 8As shown, the limit fitting portion 11 includes two limit protrusions 111. The two limit protrusions 111 are arranged at intervals along the rotation direction of the fan blade 2. When the fan blade 2 is unfolded, the first limit contact surface 221 abuts against and is limited by one of the limit protrusions 111. When the fan blade 2 is folded, the second limit contact surface 222 abuts against and is limited by the other limit protrusion 111.

[0052] Specifically, referring to Figure 3 and Figure 4 As 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 disc 1 to rotate. The rotating fan blade disc 1 applies a centrifugal force to the fan blade 2 in the direction away from the center of the fan blade disc 1, causing the fan blade 2 to rotate relative to the fan blade disc 1 and unfold until one of the limit protrusions 111 on the fan blade disc 1 abuts against and is limited by the first limit contact surface 221 on the fan blade 2, preventing the fan blade 2 from continuing to rotate in the direction away from the center of the fan blade disc 1. The relative position between the fan blade 2 and the fan blade disc 1 is kept stable, and the fan blade 2 remains in the unfolded state; referring 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 disc 1. The fan blade disc 1 gradually decelerates until it stops rotating, and the centrifugal force slowly decreases until it disappears. The elastic force of the elastic reset member 3 overcomes the centrifugal force to reset the fan blade 2. The fan blade 2 is subjected to the elastic force applied by the elastic reset member 3 in the direction towards the center of the fan blade disc 1, causing the fan blade 2 to rotate relative to the fan blade disc 1 in the reverse direction and reset until the other limit protrusion 111 on the fan blade disc 1 abuts against and is limited by the second limit contact surface 222 on the fan blade 2, preventing the fan blade 2 from continuing to rotate in the direction towards the center of the fan blade disc 1. The relative position between the fan blade 2 and the fan blade disc 1 is kept stable, and the fan blade 2 remains in the folded state.

[0053] It should be noted that for the convenience of processing, the circumferential dimension of the limiting protrusion provided on the inner groove wall of the limiting groove 21 of the fan blade 2 is relatively small, so that the distance between the first limiting contact surface 221 and the second limiting contact surface 222 of the limiting protrusion on the side away from the limiting protrusion 111 in the circumferential direction of the fan blade 2 is relatively large, that is, a relatively large space for the limiting protrusion 111 on the fan blade disc 1 to rotate relative to each other is formed between the first limiting contact surface 221 and the second limiting contact surface 222. If only one limiting protrusion 111 is provided on the fan blade disc 1, there may be a problem that the fan blade 2 can rotate relative to the fan blade disc 1 by a relatively large angle. Therefore, by providing two spaced limiting protrusions 111 on the fan blade disc 1, one limiting protrusion 111 is used to abut against the first limiting contact surface 221 to achieve the limiting of one rotation direction, and the other limiting protrusion 111 is used to abut against the second limiting contact surface 222 to achieve the limiting of the other rotation direction. In this way, the rotation angle of the fan blade 2 relative to the fan blade disc 1 can be limited within a relatively small and appropriate range.

[0054] Of course, if factors such as processing dimensions are not considered, it is also feasible to provide one limiting protrusion 111 on the fan blade disc 1, and it can also limit the rotation angle of the fan blade 2 relative to the fan blade disc 1 within an appropriate range.

[0055] In some embodiments, as shown in FIGS. 2, Figure 4 , Figure 7 and Figure 8 the elastic resetting member 3 is a reset torsion spring, and the reset torsion spring is located in the limiting groove 21; a first torsion spring limiting portion 23 is provided in the limiting groove 21, and a second torsion spring limiting portion 12 is provided on the fan blade disc 1. One end of the reset torsion spring is connected to the first torsion spring limiting portion 23, and the other end is connected to the second torsion spring limiting portion 12.

[0056] With such a setting, not only can the rotation angle range of the fan blade 2 relative to the fan blade disc 1 be limited by the rotation limiting portion 22 on the inner groove wall of the limiting groove 21, but also the limiting groove 21 can be used to provide an installation position for the reset torsion spring, and the first torsion spring limiting portion 23 provided in the limiting groove 21 can be used to connect one end of the fan blade 2 to the reset torsion spring. At the same time, the other end of the reset torsion spring is connected to the second torsion spring limiting portion 12 provided on the fan blade disc 1, so as to realize the installation of the reset torsion spring between the fan blade 2 and the fan blade disc 1. With such a setting, there is no need to additionally provide a limiting member or other structures between the fan blade 2 and the fan blade disc 1, or on the side of the fan blade disc 1 facing away from the fan blade 2, to realize the installation of the reset torsion spring between the fan blade 2 and the fan blade disc 1, and the rotation angle of the fan blade 2 relative to the fan blade disc 1 can be limited. The structure is simplified, the number of structural components is small, the complexity of the installation structure of the fan blade 2 is reduced, and the assembly efficiency of the fan lamp is improved.

[0057] In some embodiments, as shown in FIGS. Figure 6 andFigure 8 As shown, the limiting convex part includes two limiting convex ribs, and the two limiting convex ribs are adjacent and spaced along the circumferential direction of the inner groove wall of the limiting groove 21; the two limiting convex ribs together form a first torsion spring limiting part 23, and one end of the return torsion spring is limited in the gap space formed between the two limiting convex ribs. By setting it in this way, the installation and fixation of the return torsion spring on the fan blade 2 can be realized, with a simple structure and convenient assembly.

[0058] Specifically, in order to facilitate the installation of the return torsion spring, the limiting groove 21 can be a groove-like structure with an annular inner wall, so as to be adapted to the shape of the return torsion spring and facilitate the installation of the return torsion spring; further, in order to realize the stability of the installation of the return torsion spring in the limiting groove 21, referring to Figure 6 and Figure 8 As shown, a convex structure 25 can be provided on the bottom wall of the limiting groove 21, and the convex structure 25 protrudes towards the notch direction of the limiting groove 21. The torsion spring main body part of the return torsion spring is sleeved on the convex structure 25, so as to use the convex structure 25 to position the installation of the return torsion spring, thereby ensuring the stability of the installation of the return torsion spring in the limiting groove 21; the shape of the convex structure 25 is not limited here. Exemplarily, the convex structure 25 can be in the shape of a gear.

[0059] In some embodiments, referring to Figure 5 and Figure 7 As shown, a raised limiting rib is formed on the surface of the fan blade disc 1 facing the fan blade 2, and the limiting rib is formed as a second torsion spring limiting part 12. The other end of the return torsion spring is limited in the limiting socket formed between the limiting rib and the fan blade disc 1. By setting it in this way, through 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, with a simple structure and convenient forming; when assembling the return torsion spring, only need to insert the other end of the return torsion spring into the limiting socket formed between the limiting rib and the fan blade disc 1, with simple operation, time-saving and labor-saving.

[0060] Of course, the specific structure of the second torsion spring limiting part 12 is not limited to the above-mentioned limitation, as long as it can realize the limitation of the other end of the return torsion spring.

[0061] It should be noted that the elastic return member 3 is not limited to a return torsion spring, and it is also feasible to use a return tension spring. Exemplarily, a first tension spring limiting part is provided on the outer peripheral surface of the fan blade 2, and a second tension spring limiting part corresponding to the first tension spring limiting part is provided on the fan blade disc 1. One end of the return tension spring is connected to the first tension spring limiting part, and the other end is connected to the second tension spring limiting part, so as to realize connecting the return tension spring between the fan blade 2 and the fan blade disc 1, and it can also realize that after the fan blade disc 1 stops rotating, relying on the elastic force of the return tension spring, driving the fan blade 2 to rotate relative to the fan blade disc 1 and reset.

[0062] In some embodiments, referring toFigures 1 to 4 As shown, a blade mounting hole 24 is formed on the blade 2, and a blade fixing hole 13 corresponding to the blade mounting hole 24 is formed on the blade disc 1. The blade 2 is mounted on the blade disc 1 through a screw 4 passing through the blade mounting hole 24 and the blade fixing hole 13, and a nut 5 sleeved on the screw 4. With this arrangement, the installation of the blade 2 on the blade disc 1 is achieved, and the blade 2 can rotate relative to the blade disc 1 with the axis line of the screw 4 as the axis.

[0063] In some embodiments, referring to Figure 3 and Figure 4 As shown, the blade 2 includes a blade body 26 and a mounting post 27 formed at one end of the blade body 26. The blade 2 rotates relative to the blade disc 1 with the axis line of the mounting post 27 as the axis. A limiting groove 21 is formed on the end face of the mounting post 27 facing the blade disc 1, that is, the limiting groove 21 is formed on the end face of the mounting post 27 facing the blade disc 1. With this arrangement, the mounting post 27 serves as a structure for rotatably connecting with the blade disc 1, and structures such as the limiting groove 21 can be provided on the mounting post 27. By providing the limiting groove 21 on the mounting post 27 and providing a rotation limiting portion 22 on the inner groove wall of the limiting groove 21, the rotation limiting portion 22 can be arranged closer to the rotation axis of the blade 2, thereby reducing the impact force when the blade 2 rotates relative to the blade disc 1, and further reducing the impact force when the blade 2 unfolds or folds.

[0064] Specifically, a mounting post 27 can be provided at one end of the blade body 26. The mounting post 27 protrudes and extends in the direction facing the blade disc 1 relative to the blade body 26. An installation hole is formed at one end of the mounting post 27 facing the blade disc 1, and a through hole corresponding to the installation hole is formed on the blade disc 1. The screw 4 is used to pass through the installation hole on the mounting post 27 and the through hole on the blade disc 1, and a nut 5 is sleeved on the protruding end of the screw 4, so that the mounting post 27 is rotatably connected to the blade disc 1 through the screw 4 and the nut 5. Of course, the rotation connection method between the mounting post 27 and the blade disc 1 is not limited to the above definition, and a bearing or the like can also be added between the two to achieve the rotation connection between the mounting post 27 and the blade disc 1.

[0065] In a specific implementation, the mounting post 27 can be a cylindrical structure. A limiting groove 21 is formed on the end face of the mounting post 27 facing the blade disc 1, that is, the limiting groove 21 is formed on the end face of the mounting post 27 facing the blade disc 1; a rotation limiting portion 22 and a first torsion spring limiting portion 23 are formed on the inner groove wall of the limiting groove 21, so as to limit the rotation angle of the blade 2 relative to the blade disc 1 by the cooperation of the rotation limiting portion 22 and the limiting cooperation portion 11 on the blade disc 1, and realize the installation and fixation of the return torsion spring on the blade 2 by using the limiting groove 21 and the first torsion spring limiting portion 23.

[0066] In some embodiments, referring toFigure 1 and Figure 3 As shown in Figure 3 , the elastic reset member 3 is a reset torsion spring. The reset torsion spring 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 disk 1. The screw 4 passes through the torsion spring body, and the torsion spring body is elastically supported between the fan blade 2 and the fan blade disk 1 along the axial direction of the fan blade disk 1. With such a setting, it is realized that the reset torsion spring is elastically supported between the fan blade 2 and the fan blade disk 1 along the axial direction of the fan blade disk 1, so that the fan blade 2 and the fan blade disk 1 do not directly contact each other, thereby reducing the friction force when the fan blade 2 rotates relative to the fan blade disk 1, improving the smoothness of the rotation of the fan blade 2, and reducing the noise generated by friction.

[0067] In some embodiments, the number of the fan blades 2 is multiple. The multiple fan blades 2 are arranged on the fan blade disk 1 at intervals in the circumferential direction of the fan blade disk 1, and the multiple fan blades 2 are arranged independently of each other. The number of the elastic reset members 3 is equal to the number of the fan blades 2, and they are arranged in one-to-one correspondence. An elastic reset member 3 is connected between each fan blade 2 and the fan blade disk 1. With such a setting, the multiple fan blades 2 can rotate independently of each other, which is convenient for installation, maintenance and other operations on a single fan blade 2 on the fan blade disk 1.

[0068] Specifically, it can be selected that the number of both the fan blades 2 and the elastic reset members 3 is three. The three fan blades 2 are arranged at intervals in the circumferential direction of the fan blade disk 1. The three elastic reset members 3 are arranged in one-to-one correspondence with the three fan blades 2. One end of each elastic reset member 3 is connected to the corresponding fan blade 2, and the other end is connected to the fan blade disk 1, 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 elastic reset members 3 is other numbers, and the number of the fan blades 2 is equal to the number of the elastic reset members 3, and they are connected in one-to-one correspondence.

[0069] Exemplarily, a first torsion spring limiting portion 23 is provided on the inner groove wall of the limiting groove 21 of each fan blade 2. There are three second torsion spring limiting portions 12 on the fan blade disk 1. The three second torsion spring limiting portions 12 are arranged at intervals in the circumferential direction of the fan blade disk 1. The three elastic reset members 3 are all reset torsion springs. The three reset torsion springs are respectively installed in the limiting grooves 21 formed on the three fan blades 2, and the three reset torsion springs are respectively connected to the three second torsion spring limiting portions 12 in one-to-one correspondence.

[0070] In some embodiments, referring to Figures 1 to 4 As shown in Figures 1 to 4 , the driving member 6 is a motor to drive the fan blade disk 1 to rotate through the motor. With such a setting, the motor can control the rotation and stop of the fan blade disk 1. When the fan lamp needs to blow air, the motor drives the fan blade 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.

[0071] Specifically, the motor can be installed at the center of the fan blade disc 1, so that after the motor is started, it can drive the fan blade disc 1 to rotate around its own axis. The motor can be connected to the fan blade disc 1 by bolts. Specifically, motor mounting holes 14 can be provided on the fan blade disc 1, and the motor is installed on the fan blade disc 1 through bolts passing through the motor mounting holes 14. The number of motor mounting holes 14 can be one or more. Of course, other connection methods such as snap connection and riveting can also be selected to connect with the fan blade disc 1.

[0072] Referring Figures 1 to 4 As shown, for the ceiling fan lamp provided by the embodiment of the present utility model, during specific assembly, first, four screws 4 are used to fix the motor on the fan blade disc 1; then one end of the return torsion spring is hooked at the second torsion spring limiting portion 12 formed on the fan blade disc 1, and the other end of the return torsion spring is fixed at the first torsion spring limiting portion 23 formed on the fan blade 2, and the fan blade 2 presses the return torsion spring. Then, the fan blade fixing screw 4 is locked together with the nut 5 through the fan blade mounting hole 24 on the fan blade 2 and the fan blade fixing hole 13 on the fan blade disc 1 to fix one fan blade 2, and the other two fan blades 2 are fixed in the same way.

[0073] During specific use, when the blowing function of the ceiling fan lamp 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 of the return torsion spring and the three fan blades 2 are thrown out. When the first limiting contact surface 221 on the fan blade 2 contacts a corresponding limiting protrusion 111 on the fan blade disc 1, the fan blade 2 reaches the maximum extended angle, and the fan blade 2 rotates to supply air at this angle.

[0074] When the blowing function of the ceiling fan lamp is turned off, the motor stops providing rotational kinetic energy, and the centrifugal force gradually decreases to disappear. The torsion of the return torsion spring overcomes the centrifugal force to reset the fan blades 2 until the second limiting contact surface 222 on the fan blades 2 contacts another corresponding limiting protrusion 111 on the fan blade disc 1, and the reset is completed, and the fan blades 2 remain in the closed state.

[0075] 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 variation thereof is intended to cover non-exclusive inclusion, so that a process, method, article or device comprising 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 "comprising a..." does not exclude the existence of additional identical elements in the process, method, article or device comprising the element.

[0076] The above are only specific embodiments 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 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; An elastic reset member, 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 limiting groove is provided on one side of the fan blade facing the fan blade disc, a rotation limiting portion is provided on the inner groove wall of the limiting groove, a limiting cooperation portion corresponding to the rotation limiting portion is provided on the fan blade disc, and the rotation limiting portion and the limiting cooperation portion cooperate inside the limiting groove to limit the rotation angle of the fan blade on the fan blade disc; The rotation limiting portion includes a limiting convex portion provided on the inner groove wall of the limiting groove, and the limiting convex portion has a first limiting abutting surface and a second limiting abutting surface arranged opposite to each other along the rotation direction of the fan blade; The limiting cooperation portion includes at least one limiting protrusion provided on the surface of the fan blade disc facing the fan blade. When the fan blade unfolds, the first limiting abutting surface abuts against and limits the limiting protrusion, and when the fan blade closes, the second limiting abutting surface abuts against and limits the limiting protrusion.

2. The ceiling fan light according to claim 1, wherein, The limiting cooperation portion includes two limiting protrusions, and the two limiting protrusions are arranged at intervals along the rotation direction of the fan blade. When the fan blade unfolds, the first limiting abutting surface abuts against and limits one of the limiting protrusions, and when the fan blade closes, the second limiting abutting surface abuts against and limits the other limiting protrusion.

3. The ceiling fan light according to claim 1, wherein The elastic reset member is a reset torsion spring, and the reset torsion spring is located in the limiting groove; A first torsion spring limiting portion is provided in the limiting groove, a second torsion spring limiting portion is provided on the fan blade disc, 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.

4. The ceiling fan light according to claim 3, wherein, The limiting convex portion includes two limiting ribs, and the two limiting ribs are adjacent and spaced along the circumference of the inner groove wall of the limiting groove; The two limiting ribs together form 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.

5. The ceiling fan light according to claim 3, wherein 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 portion. The other end of the reset torsion spring is limited in the limiting slot formed between the limiting rib and the fan blade disc.

6. The ceiling fan light according to any one of claims 1 to 5, characterized in that, The fan blade includes a fan blade body and a mounting post formed at one end of the fan blade body. The fan blade rotates relative to the fan blade disc with the axis of the mounting post as the axis, and the limiting groove is formed on the end face of the mounting post facing the fan blade disc.

7. The ceiling fan light according to any one of claims 1 to 5, 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 by 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 elastic reset member is a reset torsion spring, and the reset torsion spring 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, 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 5, 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 elastic reset members is equal to the number of the fan blades, and they are arranged in one-to-one correspondence, and one elastic reset member is connected between each fan blade and the fan blade disc.

Images