Fast fan blade assembling structure and ceiling fan

Abstract

Disclosed in the present invention are a fast fan blade assembling structure and a ceiling fan. The fast fan blade assembling structure comprises a rotary disc, insertion slots being formed in the peripheral wall of the rotary disc, and spindles being provided on the rotary disc; fan blades, each of which being inserted into one insertion slot, the end of each fan blade being provided with an open notch, each open notch being provided with notch side walls and a notch bottom wall, a clearance part being provided between the notch bottom wall and each notch side wall, and a snap-fit recess being provided in each notch side wall; snap-fit blocks, each of which being located in an open notch, each snap-fit block being provided with a hinge part as well as a first arm and a second arm which are arranged on the hinge part, each snap-fit block being hinged to a spindle by means of a hinge part, during rotation of the snap-fit block, the first arm and the second arm swinging in opposite directions, the first arm abutting against the inside of a snap-fit recess to restrict a fan blade from detaching outward from an insertion slot, and the hinge part being spaced apart from the notch bottom wall; and return springs, each of which being connected to a snap-fit block, thus driving each first arm to spread and keeping the first arm to abut against the inside of a snap-fit recess; and locking mechanisms, used for keeping the first arms in a retracted state. The assembly and disassembly of fan blades only require pushing fan blades in or pulling same out, thereby making the disassembly of fan blades smoother and the operation simple and easy.

Description

A fan blade quick-installation structure and ceiling fan Technical Field

[0001] The present invention relates to the field of fans, and in particular to a fan blade quick-installation structure and a ceiling fan. Background Art

[0002] For ceiling fans, in order to facilitate packaging and transportation, the fan blades and the turntable are separated. After purchase, the user can install the fan blades on the turntable, and when cleaning is needed, the fan blades can be removed from the turntable.

[0003] However, in the prior art, fan blades are generally fixed by means of screws. Users need to tighten or loosen the screws when removing or assembling the fan blades, which is very inconvenient. There is also a method of fixing the fan blades with buckles in the prior art. The buckle structure is convenient for users to install the fan blades, but when the fan blades need to be removed, the ceiling fan needs to be significantly disassembled to expose the buckles inside the turntable. Then, the buckles need to be manually pressed to release the buckles from the fan blades before the fan blades can be removed from the turntable, making the removal of the fan blades complicated and troublesome.

[0004] In order to solve the above technical problems, the applicant has invented and applied for a ceiling fan with quickly disassembled and assembled fan blades after extensive research (patent application number: 2023227812750), which makes disassembly and assembly of the fan blades extremely convenient.

[0005] After the above patent application technology was proofed and tested through disassembly and assembly, it was found that at some times (occasionally), the fan blades were not easy to pull out from the turntable. After disassembling the samples and analyzing the design drawings, it was found that this was because when the fan blades were pulled out for disassembly, the card block continued to open under the action of the elastic part, which may cause the long arm of the card block to be re-stuck in the card slot of the fan blade, making it impossible to continue to pull the fan blade out, thereby affecting the smooth progress and accuracy of the fan blade disassembly. That is, at some times, it may be necessary to repeat the disassembly action before the fan blades can be removed from the turntable.

[0006] In addition, when removing the fan blades, the effect of the fan blades automatically popping out of the slots is not obvious, which also affects the user's experience when removing the fan blades.

[0007] For this reason, it is necessary to improve and optimize the existing ceiling fans.

[0008] Summary of the Invention

[0009] The present invention aims to solve at least one of the problems of the prior art. To this end, the present invention provides a fan blade quick-installation structure and a ceiling fan, wherein the fan blades can be installed and removed by simply pushing in or pulling out the fan blades, making the removal of the fan blades smoother and easier.

[0010] The technical solution adopted by the present invention to solve its technical problem is:

[0011] In a first aspect, an embodiment of the present invention provides a fan blade quick-installation structure, comprising:

[0012] A turntable, wherein a slot is provided on the peripheral wall of the turntable and a rotating shaft is provided on the turntable;

[0013] A fan blade is inserted into the slot, an end of the fan blade is provided with an open slot, the open slot has slot side walls and a slot bottom wall, a gap is provided between the slot bottom wall and the slot side walls, and a clamping slot is provided on the slot side walls;

[0014] a clamping block located in the open slot, the clamping block having a hinge portion, and a first arm and a second arm provided on the hinge portion, the clamping block being hinged to the rotating shaft via the hinge portion, and when the clamping block rotates, the first arm and the second arm swing in opposite directions, the first arm abutting against the clamping slot to restrict the fan blade from outwardly disengaging from the slot, and the hinge portion being spaced apart from the bottom wall of the slot;

[0015] a return spring connected to the clamping block to drive the first arm to open so that the first arm remains in contact with the clamping slot;

[0016] A locking mechanism for keeping the first arm in a folded state;

[0017] When unlocking, the fan blades are pushed inward, the bottom wall of the groove pushes the second arm to open, the first arm is linked to retract and disengage from the slot, and the first arm is kept in the retracted state by the locking mechanism; then the fan blades are pulled outward, the side wall of the groove pushes the second arm to retract, the first arm is linked to release the lock of the locking mechanism, and the first arm opens and resets.

[0018] Optionally, an arc-shaped limiting groove is provided on the turntable, and a limiting block is provided on the clamping block, and the limiting block is located in the arc-shaped limiting groove to limit the opening angle of the first arm.

[0019] Optionally, a protrusion is provided in the arc-shaped limiting groove, and the protrusion and the limiting block form the locking mechanism.

[0020] Optionally, the clamping block includes a first clamping block and a second clamping block, wherein a buckle is provided on the first arm of the first clamping block, and a buckle groove is provided on the first arm of the second clamping block, and the buckle and the buckle groove form the locking mechanism. When the first arm is folded, the buckle is buckled into the buckle groove, so that the first arm remains in a folded state.

[0021] Optionally, the side wall of the groove has an abutment portion that pushes the first arm to swing, and the abutment portion is an inclined wall or an arc wall.

[0022] Optionally, the end of the second arm is an inclined wall, the bottom wall of the groove is provided with an inclined surface adapted to the inclined wall, and the inclined wall abuts against the inclined surface; the bottom wall of the groove has an arc-shaped wall adapted to the hinge portion.

[0023] Optionally, the length of the first arm is greater than the length of the second arm, the first arm forms a long arm, and the second arm forms a short arm.

[0024] In a first aspect, an embodiment of the present invention further provides another fan blade quick-installation structure, including:

[0025] A turntable, wherein a slot is provided on the peripheral wall of the turntable, an open slot is provided in the turntable, the slot corresponds to the position of the open slot, the open slot has a slot side wall and a slot bottom wall, a space is provided between the slot bottom wall and the slot side wall, and a clamping slot is provided on the slot side wall;

[0026] A fan blade is inserted into the slot, and a rotating shaft is provided at the end of the fan blade;

[0027] a clamping block located in the open slot, the clamping block having a hinge portion, and a first arm and a second arm provided on the hinge portion, the clamping block being hinged to the rotating shaft via the hinge portion, and when the clamping block rotates, the first arm and the second arm swing in opposite directions, the first arm abutting against the clamping slot to restrict the fan blade from outwardly disengaging from the slot, and the fan blade being spaced apart from the bottom wall of the slot;

[0028] a return spring connected to the clamping block to drive the first arm to open so that the first arm remains in contact with the clamping slot;

[0029] A locking mechanism for keeping the first arm in a folded state;

[0030] When unlocking, the fan blades are pushed inward, the bottom wall of the groove pushes the second arm to open, the first arm is linked to retract and disengage from the slot, and the first arm is kept in the retracted state by the locking mechanism; then the fan blades are pulled outward, the side wall of the groove pushes the second arm to retract, the first arm is linked to release the lock of the locking mechanism, and the first arm opens and resets.

[0031] Optionally, a buckle is provided on the first arm, and a buckle groove is provided on the fan blade. When the first arm is folded, the buckle is buckled into the buckle groove, and the buckle and the buckle groove form the locking mechanism.

[0032] In a second aspect, an embodiment of the present invention provides a ceiling fan, comprising the fan blade quick-installation structure described in any one of the embodiments of the first aspect.

[0033] The invention has at least one of the following beneficial effects: an embodiment of the invention provides an open slot at the end of the fan blade, the open slot has slot side walls and a slot bottom wall, a gap is provided between the slot bottom wall and the slot side walls, and a locking slot is provided on the slot side walls; the locking block is hinged on the rotating shaft by a hinge part, and when the locking block rotates, the first arm of the locking block and the second arm have opposite swing directions, the first arm abuts against the locking slot to limit the fan blade from disengaging from the slot outward, and the return spring connected to the locking block drives the first arm to open, so that the first arm remains abutting against the locking slot. At this time, when the fan blade rotates at high speed, the fan blade is limited by the first arm and the locking slot and will not disengage from the turntable under the action of centrifugal force, ensuring the safety and reliability of the fan blade during operation; by setting the hinge part and the slot bottom wall to be spaced apart, the fan blade can be pushed inward relative to the turntable when it is necessary to unlock the fan blade, ensuring that the fan blade has a certain inward pushing stroke, and when the fan blade is pushed inward, the slot bottom wall pushes the second arm to open, and the opened second arm enters the gap, and since the swing directions of the first arm and the second arm are opposite, the first arm The first arm is linked to retract and disengage from the slot. The first arm triggers the locking mechanism during the retraction process. The locking mechanism keeps the first arm in the retracted state to prevent the first arm from re-entering the slot when pulling the fan blades outward and preventing the fan blades from being pulled outward, so that the fan blades can be pulled out smoothly. One disassembly action can ensure that the fan blades can be removed. When the fan blades are pulled outward, the side wall of the open slot will abut against the second arm and push the second arm to retract. The first arm is linked to open, and the locking mechanism will be released during the opening process, so that the first arm can be opened. Reset, after the lock is released, the first arm will quickly hit the side wall of the opening slot under the action of the reset force of the reset spring, so that the fan blade obtains an outward-pushing component force, the fan blade can be ejected outward, and the disassembly experience is better; when installing the fan blade, it is only necessary to push the fan blade into the slot of the turntable. During the insertion process of the fan blade, it will abut against the first arm of the card block and push the first arm to retract until the card slot on the fan blade moves to the predetermined position. The first arm is clamped into the card slot under the action of the reset spring, completing the limit of the fan blade, and the fan blade cannot be pulled out. That is, during the entire process of installing and disassembling the fan blade, the user only needs to insert the fan blade or pull out the fan blade, and there is no need to manually operate the card block. As a result, the disassembly and assembly of the fan blade becomes extremely simple, convenient and quick, with little labor. By exchanging the positions of the card block and the opening slot, the card block is hinged on the fan blade, and the opening slot is set on the turntable, the effect of quick disassembly and assembly of the fan blade can also be achieved. BRIEF DESCRIPTION OF THE DRAWINGS

[0034] FIG1 is a schematic diagram of the three-dimensional structure of a ceiling fan lamp according to an embodiment of the present invention;

[0035] FIG2 is a schematic diagram of the three-dimensional structure of the fan blade quick assembly structure according to an embodiment of the present invention;

[0036] FIG3 is a schematic diagram of the three-dimensional structure of the other side of FIG2;

[0037] Figure 3.1 is a partial enlarged view of A in Figure 3;

[0038] FIG4 is a schematic diagram of the three-dimensional structure of the turntable in an embodiment of the present invention;

[0039] FIG5 is a schematic diagram of FIG4 from another angle;

[0040] FIG6 is a schematic diagram of the installation of a return spring on a turntable according to an embodiment of the present invention;

[0041] FIG7 is a schematic diagram of the three-dimensional structure of the first card block in an embodiment of the present invention;

[0042] FIG8 is a schematic diagram of FIG7 from another angle;

[0043] FIG9 is a schematic diagram of the three-dimensional structure of the second card block in an embodiment of the present invention;

[0044] FIG10 is a schematic diagram from another angle of FIG9;

[0045] FIG11 is a schematic diagram (partial) of the three-dimensional structure of a fan blade in an embodiment of the present invention;

[0046] FIG12 is a schematic diagram of the three-dimensional structure of a card block in another embodiment of the present invention;

[0047] FIG13 is a schematic diagram of the quick-install structure when the card block shown in FIG12 is installed on the turntable;

[0048] 14 is a schematic diagram of the quick-install structure when the fan blades are not inserted into the turntable according to an embodiment of the present invention;

[0049] 15 is a schematic diagram of the quick-install structure of the fan blades during the process of inserting the turntable into the embodiment of the present invention;

[0050] 16 is a schematic diagram of the quick-install structure when the fan blades are pushed inward to unlock the embodiment of the present invention;

[0051] FIG17 is a schematic diagram of the three-dimensional structure of a fan blade quick-install structure in another embodiment of the present invention;

[0052] FIG18 is a schematic diagram of the three-dimensional structure of the fan blade in the embodiment shown in FIG17;

[0053] FIG19 is a partial enlarged view of B in FIG18;

[0054] Description of Figure Numbers:

[0055] 1-turntable, 11-slot, 12-rotating shaft, 13-arc-shaped limiting groove, 14-bump, 2-fan blade, 21-opening groove, 211-slot side wall, 212-slot bottom wall, 2121-inclined surface, 2122-arc-shaped wall, 213-air avoidance portion, 214-card slot, 215-abutment portion, 22-buckle slot, 3-card block, 31-hinge portion, 32-first arm, 321-card buckle, 322-buckle slot, 33-second arm, 34-limiting block, 4-screw, 5-reset spring, 6-lamp. DETAILED DESCRIPTION

[0056] To make the purpose, technical solutions and advantages of the present invention more clearly understood, the embodiments of the present invention will be described in detail below with reference to the accompanying drawings. It should be noted that the embodiments and features in the embodiments described below can be combined with each other in any manner unless there is any conflict.

[0057] The following provides many different embodiments or examples for realizing the structure of the present invention.

[0058] 1 to 16 , an embodiment of the first aspect of the present invention provides a fan blade quick-installation structure, comprising a turntable 1, a slot 11 being provided on the peripheral wall of the turntable 1, and a rotating shaft 12 being provided on the turntable 1; a fan blade 2 being inserted into the slot 11, and an open slot 21 being provided at the end of the fan blade 2, wherein the open slot 21 has a slot side wall 211 and a slot bottom wall 212, and a space avoidance portion 213 is provided between the slot bottom wall 212 and the slot side wall 211, and a clamping slot 214 is provided on the slot side wall 211; a clamping block 3 being located in the open slot 21, and the clamping block 3 has a hinge portion 31, and a first arm 32 and a second arm 33 provided on the hinge portion 31, the clamping block 3 being hinged to the rotating shaft 12 via the hinge portion 31, specifically, the hinge portion 31 has a hinge hole, The hinge hole can be directly placed on the rotating shaft 12 and then locked by the screw 4. When the block 3 rotates, the first arm 32 and the second arm 33 swing in opposite directions, that is, the first arm 32 rotates clockwise and the second arm 33 rotates counterclockwise, and vice versa. The first arm 32 abuts against the slot 214 to limit the fan blade 2 from disengaging from the slot 11. The hinge portion 31 is spaced apart from the slot bottom wall 212. The existence of the space enables the fan blade 2 to be pushed inward to facilitate unlocking the fan blade; the reset spring 5 is connected to the block 3 to drive the first arm 32 to open so that the first arm 32 remains abutting against the slot 214. In this embodiment, the reset spring 5 is specifically a torsion spring. The reset force of the torsion spring enables the first arm 32 to always abut against the slot 214, preventing the first arm 32 from disengaging from the slot 214 and causing the fan blade's limit to fail; the locking mechanism is used to keep the first arm 32 in a folded state. When the first arm 32 is in the folded state, the fan blade is pulled out and the first arm 32 will not enter the slot 214, so that the fan blade can be pulled out and disassembled.

[0059] The working principle of the embodiment of the present invention is as follows:

[0060] ① Working state: As shown in FIG3 and FIG3.1, the first arm 32 maintains an opening tendency under the action of the reset force of the reset spring 5, so that the first arm 32 remains in contact with the retaining groove 214. At this time, when the fan blades rotate at high speed, the fan blades 2 are limited by the first arm 32 and the retaining groove 214 and will not separate from the turntable 1 under the action of centrifugal force, ensuring the safety and reliability of the fan blades during operation;

[0061] ②. Disassembly process: Please refer to FIG16 for details. Since the hinge portion 31 is spaced apart from the bottom wall 212 of the groove, the fan blade has a certain inward push stroke. When unlocking the fan blade, push the fan blade 2 inward, and the bottom wall 212 of the groove pushes the second arm 33 to open. The opened second arm 33 enters the avoidance portion 213. Since the swing directions of the first arm 32 and the second arm 33 are opposite, the first arm 32 is linked to retract and disengage from the slot 214. The first arm 32 triggers the locking mechanism to work during the retraction process, and the locking mechanism keeps the first arm 32 in the retracted state. Then, pull the fan blade 2 outward. Since the first arm 32 is kept in the retracted state, the first arm 32 will not re-enter the slot 214, and will not prevent the fan blade 2 from being pulled outward, so that the fan blade is pulled outward. The first arm 32 is opened and reset under the action of the reset spring 5, and the reset state is shown in FIG14 .

[0062] ③. Fan blade installation: Please refer to Figure 15 for details. When installing the fan blade, you only need to push the fan blade into the slot 11 of the turntable 1. During the insertion process, the fan blade 2 will abut against the first arm 32 of the block 3 and push the first arm 32 to retract. When the first arm 32 retracts, it will compress the reset spring 5, so that the reset spring 5 gradually reserves elastic reset force, and the fan blade continues to push inward until the slot 214 on the fan blade 2 moves to the predetermined position. The first arm 32 is automatically stuck in the slot 214 under the elastic reset force of the reset spring 5, and the working state shown in Figures 3 and 3.1 is obtained, thereby completing the limit of the fan blade and the fan blade cannot be pulled out.

[0063] During the entire process of installing and disassembling the fan blades, the user only needs to insert or pull out the fan blades, and there is no need to manually operate the clamping blocks. As a result, the disassembly and assembly of the fan blades becomes extremely simple, convenient and quick, with little labor.

[0064] Specifically referring to Figures 3.1, 4, 8, and 9, in some embodiments of the present invention, an arc-shaped limit groove 13 is provided on the turntable 1, and a limit block 34 is provided on the clamping block 3. The limit block 34 is located in the arc-shaped limit groove 13 to limit the opening angle of the first arm 32. The provision of the arc-shaped limit groove 13 and the limit block 34, on the one hand, drives the clamping block 3 to rotate along the arc of the arc-shaped limit groove 13, ensuring the accurate rotation of the clamping block 3, and on the other hand, prevents the first arm 32 from being excessively opened when the clamping block 3 is in the reset state as shown in Figure 14, which may result in the fan blade 2 being unable to push the first arm 32 to swing when the fan blade 2 is installed.

[0065] Specifically referring to Figures 12 and 13, in some embodiments of the present invention, a protrusion 14 is provided in the arc-shaped limiting groove 13, and the protrusion 14 and the limiting block 34 form the locking mechanism. Figure 13 shows a single-ear structure (only one locking block). During the unlocking process, when the first arm 32 is retracted, it will force the limiting block 34 to swing to the position of the protrusion 14. The protrusion 14 or the limiting block 34 as a plastic part will deform until the limiting block 34 swings to the other side of the protrusion 14. The force exerted by the protrusion 14 on the limiting block 34 is set to be greater than the reset force of the reset spring 5. The first arm 32 is in a retracted state. Only when the fan blades are pulled outward, the groove side wall 211 pushes the second arm 33 to swing and retract. Under the action of external force, the force exerted by the protrusion 14 on the limiting block 34 will be overcome, causing the first arm 32 to open and reset. It is understandable that the locking mechanism is also applicable to a double-ear structure (with two clamping blocks, including a first clamping block and a second clamping block), and the locking mechanism makes it easy to realize a single-ear structure.

[0066] Specifically referring to Figures 3.1, 7-10, and 16, in some embodiments of the present invention, the clamping block has a double-ear structure, comprising a first clamping block and a second clamping block. The first arm 32 of the first clamping block is provided with a latch 321, and the first arm 32 of the second clamping block is provided with a latch groove 322. The latch 321 and the latch groove 322 form the locking mechanism. Referring to Figure 3.1, when the first arm 32 is extended, the latch 321 and the latch groove 322 are disengaged. Specifically referring to Figure 16, when the first arm 32 is retracted, the latch 321 engages the latch groove 322. This locking mechanism facilitates mold release and ensures that the two first arms 32 fit together when retracted, making the fan blades more smoothly extended.

[0067] Specifically referring to Figure 3.1 and Figures 7 to 12 and 15, in some embodiments of the present invention, the groove side wall 211 has an abutment portion 215 that pushes the first arm 32 to swing, and the abutment portion 215 is an inclined wall or an arc wall, so that when the abutment portion 215 pushes the first arm 32 to swing and retract, the abutment portion 215 can better fit with the first arm 32, reducing the force applied when pushing the first arm 32 to retract, and also reducing the wear on the abutment portion and the first arm, thereby extending the service life.

[0068] Specifically referring to Figure 3.1 and Figures 7 to 12, in some embodiments of the present invention, the end of the second arm 33 is a slanted wall, and the groove bottom wall 212 is provided with a slanted surface 2121 adapted to the slanted wall. The slanted wall abuts against the slanted surface 2121. When the slanted surface 2121 pushes the second arm 33 to swing open, the slanted wall and the slanted surface 2121 fit better, reducing the force applied when pushing the second arm 33 to open, reducing the wear on the groove bottom wall and the second arm, and extending the service life.

[0069] Specifically referring to Figure 16 and Figures 7 to 12, in some embodiments of the present invention, the groove bottom wall 212 has an arc-shaped wall 2122 adapted to the hinge portion, so that the interval between the groove bottom wall 212 and the hinge portion 31 is equidistant, ensuring that the inward push stroke of the fan blade is sufficient to complete the retraction of the first arm 32 to trigger the locking mechanism, and also making the layout at the position of the block 3 more compact.

[0070] Specifically referring to Figures 7-10 and 12, in some embodiments of the present invention, the length of the first arm 32 is greater than the length of the second arm 33, the first arm 32 forms a long arm, and the second arm 33 forms a short arm, so that when the first arm 32 and the second arm 33 swing at the same time, the swinging strokes of the two walls are different, that is, the first arm 32 can be driven to retract or expand by a small stroke of pushing or pulling the fan blades inward or outward, and the long arm has a swinging stroke amplifying effect relative to the short arm.

[0071] 17 to 19 , an embodiment of the first aspect of the present invention further provides another quick-installation structure for fan blades, including a turntable 1, a slot 11 being provided on the peripheral wall of the turntable 1, an open slot 21 being provided in the turntable 1, the slot 11 corresponding to the position of the open slot 21, the root of the fan blade 2 passing through the slot 11 and entering the open slot 21, the open slot 21 having a slot side wall 211 and a slot bottom wall 212, a gap 213 being provided between the slot bottom wall 212 and the slot side wall 211, the gap 213 being used to avoid the following second arm 33 , so that the second arm 33 has an open space; a card slot 214 is provided on the side wall 211 of the slot; the fan blade 2 is inserted into the slot 11, and the end of the fan blade 2 is provided with a rotating shaft 12; the card block 3, the card block 3 can be set as one, or a pair of two, the card block 3 is located in the open slot 21, the card block 3 has a hinge portion 31, and a first arm 32 and a second arm 33 provided on the hinge portion 31, the card block 3 is hinged to the rotating shaft 12 through the hinge portion 31, and when the card block 3 rotates, the first arm 32 and the second arm The swing direction of the first arm 32 is opposite to that of the first arm 33, and the first arm 32 abuts against the slot 214 to limit the fan blade from being outwardly separated from the slot 11. The fan blade 2 is spaced apart from the bottom wall 212 of the slot so that when the fan blade 2 is removed, the fan blade 2 has space for moving inward. A return spring is connected to the block 3. Specifically, the return spring can be sleeved on the rotating shaft 12. In FIG19 , it is hidden by the block 3 and is not visible. The return spring is used to drive the first arm 32 to open so that the first arm 32 remains abutted against the slot 214. The locking mechanism is used to keep the first arm 32 in a retracted state, preventing the first arm 32 from entering the slot 214 when the fan blade 2 is withdrawn; when unlocking is required, the fan blade 2 is pushed inward, the slot bottom wall 212 pushes the second arm 33 to open, the first arm 32 is linked to retract and disengage from the slot 214, and the first arm 32 is kept in a retracted state by the locking mechanism; then the fan blade 2 is pulled outward, the slot side wall 211 pushes the second arm 33 to retract, the first arm 32 is linked to release the lock of the locking mechanism, and the first arm 32 is opened and reset. In this embodiment, a buckle 321 is provided on the first arm 32, and a buckle groove 22 is provided on the fan blade 2. When the first arm 32 is retracted, the buckle 321 is buckled into the buckle groove 22, and the buckle 321 and the buckle groove 22 form the locking mechanism.

[0072] The working principle is as follows: when installation is required, the fan blade 2 with the block 3 installed is inserted into the slot 11. The root of the fan blade 2 passes through the slot 11 and enters the open slot 21. The first arm 32 of the block 3 will gradually retract under the action of the slot sidewall 211 of the open slot 21. During the retraction process, the return spring is compressed. When the end of the first arm 32 reaches the slot 214 position, the first arm 32 enters the slot 214 under the action of the return spring, completing the installation of the fan blade. At this time, the block 3 on the fan blade (specifically the first arm 32) is limited by the slot 214, so that the fan blade 2 cannot move outward and detach from the slot 11. When unlocking is required, push the fan blade inward until the first arm 32 is retracted and locked by the locking mechanism, and then pull it outward.

[0073] 1 , an embodiment of the second aspect of the present invention provides a ceiling fan comprising a motor (hidden within the fan and not shown) and the quick-install fan blade assembly described in any of the embodiments of the first aspect. The turntable 1 is driven by the motor. The motor is provided with a central shaft, to which a lamp 6 is connected, forming a ceiling fan lamp.

[0074] The embodiments of the present invention are described in detail above with reference to the accompanying drawings. However, the present invention is not limited to the above embodiments. Various changes can be made within the scope of knowledge possessed by ordinary technicians in the relevant technical field without departing from the scope of the present invention.

Claims

1. A fan blade quick-install structure, characterized in that: include: A rotating disk, wherein a slot is arranged on the peripheral wall of the rotating disk, and a rotating shaft is arranged on the rotating disk; A fan blade is inserted into the slot, an end of the fan blade is provided with an open slot, the open slot has a slot side wall and a slot bottom wall, a clearance portion is provided between the slot bottom wall and the slot side wall, and a clamping slot is provided on the slot side wall; a card block, located in the open slot, the card block having a hinge portion, and a first arm and a second arm arranged on the hinge portion, the card block being hinged on the rotating shaft through the hinge portion, when the card block rotates, the first arm and the second arm swing in opposite directions, the first arm abuts against the card slot to limit the fan blade from outwardly escaping from the slot, and the hinge portion is spaced apart from the bottom wall of the slot; A return spring connected to the clamping block drives the first arm to open so that the first arm remains in contact with the clamping slot; A locking mechanism, used to keep the first arm in a folded state; When unlocking, the fan blade is pushed inward, the bottom wall of the groove pushes the second arm to open, the first arm is linked to retract and disengage from the slot, and the first arm is kept in a retracted state by the locking mechanism; then the fan blade is pulled outward, the side wall of the groove pushes the second arm to retract, the first arm is linked to release the lock of the locking mechanism, and the first arm opens and resets.

2. A fan blade quick-installation structure according to claim 1, characterized in that: The rotating disk is provided with an arc-shaped limiting groove, the clamping block is provided with a limiting block, and the limiting block is located in the arc-shaped limiting groove to limit the opening angle of the first arm.

3. A fan blade quick-installation structure according to claim 2, characterized in that: A protrusion is arranged in the arc-shaped limiting groove, and the protrusion and the limiting block form the locking mechanism.

4. A fan blade quick-installation structure according to claim 1 or 2, characterized in that: The clamping block includes a first clamping block and a second clamping block, wherein a buckle is provided on the first arm of the first clamping block, and a buckle groove is provided on the first arm of the second clamping block, and the buckle and the buckle groove form the locking mechanism. When the first arm is folded, the buckle is buckled into the buckle groove, so that the first arm remains in a folded state.

5. The fan blade quick-installation structure according to claim 1, characterized in that: The groove side wall is provided with an abutment portion for pushing the first arm to swing, and the abutment portion is an inclined wall or an arc surface wall.

6. [Corrected 23.12.2024 in accordance with Rule 26] A fan blade quick-installation structure according to claim 1, characterized in that: The end of the second arm is an inclined wall, and the groove bottom wall is provided with an inclined surface matched with the inclined wall, and the inclined wall abuts against the inclined surface; the groove bottom wall has an arc-shaped wall matched with the hinge part.

7. The fan blade quick-installation structure according to claim 1, characterized in that: The length of the first arm is greater than that of the second arm, the first arm forms a long arm, and the second arm forms a short arm.

8. A fan blade quick-install structure, characterized in that: include: A turntable, wherein a slot is arranged on the peripheral wall of the turntable, an open slot is arranged in the turntable, the slot corresponds to the position of the open slot, the open slot has a slot side wall and a slot bottom wall, a space avoidance portion is arranged between the slot bottom wall and the slot side wall, and a clamping slot is arranged on the slot side wall; A fan blade is inserted into the slot, and a rotating shaft is provided at the end of the fan blade; A card block is located in the open slot, the card block has a hinge portion, and a first arm and a second arm arranged on the hinge portion, the card block is hinged on the rotating shaft through the hinge portion, when the card block rotates, the first arm and the second arm swing in opposite directions, the first arm abuts against the card slot to limit the fan blade from outwardly escaping from the slot, and the fan blade is spaced apart from the bottom wall of the slot; A return spring connected to the clamping block drives the first arm to open so that the first arm remains in contact with the clamping slot; A locking mechanism, used to keep the first arm in a folded state; When unlocking, the fan blade is pushed inward, the bottom wall of the groove pushes the second arm to open, the first arm is linked to retract and disengage from the slot, and the first arm is kept in a retracted state by the locking mechanism; then the fan blade is pulled outward, the side wall of the groove pushes the second arm to retract, the first arm is linked to release the lock of the locking mechanism, and the first arm opens and resets.

9. A fan blade quick-installation structure according to claim 8, characterized in that: The first arm is provided with a buckle, and the fan blade is provided with a buckle groove. When the first arm is folded, the buckle is buckled into the buckle groove, and the buckle and the buckle groove form the locking mechanism.

10. A ceiling fan, characterized in that: It comprises the fan blade quick-installation structure described in any one of claims 1 to 9.

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