Rapid fan blade mounting structure and fan using same

Abstract

Disclosed in the present invention is a rapid fan blade mounting structure, comprising a turntable and fan blade bodies, wherein insertion slots are provided in a circumferential face of the turntable, and movable locking devices are provided on side faces of the insertion slots; each locking device is provided with an operation portion extending out of the turntable, and the locking devices have a tendency to enter the insertion slots to be close to the fan blade bodies; engagement positions are provided on side faces of roots of the fan blade bodies; and the fan blade bodies and the locking devices comprise the following two states: in a first state, when the fan blade bodies are connected to the turntable, the roots are inserted into the insertion slots, and the locking devices and the corresponding engagement positions limit each other to lock the roots in the insertion slots, and in a second state, when the fan blade bodies are separated from the turntable, an external force drives the locking devices to move by means of the operation portions, such that the locking devices disengage from the engagement positions, the roots can be separated from the insertion slots, and then the locking devices are reset once the operation portions are loosened. In the present invention, the mounting and dismounting of the fan blade bodies and the turntable do not require tools, and therefore the operation is simple and easy.

Description

Fan blade quick installation structure and fan using the same Technical Field

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

[0002] Currently, ceiling fans on the market consist of a turntable and several blades, which are fastened to the turntable with multiple bolts. To minimize size, the blades and turntable are packaged and shipped separately, requiring users to assemble them using the included tools. Both disassembly and assembly of these ceiling fans require tools. Technical issues

[0003] The object of the present invention is to provide a quick installation structure for fan blades that does not require tools for installation or disassembly. Technical Solutions

[0004] The object of the present invention is to provide a quick installation structure for fan blades that does not require tools for installation or disassembly.

[0005] The object of the present invention is achieved in this way.

[0006] Fan blade quick installation structure, including

[0007] The turntable has a slot on its circumference and a movable locking device on the side of the slot. The locking device has an operating portion extending out of the turntable, and the locking device has a tendency to enter the slot close to the fan body.

[0008] The fan blade body has a latch at the root side.

[0009] There are two states between the fan body and the locking device:

[0010] First state: When the fan body is connected to the turntable, the root is inserted into the slot, and the locking device and the corresponding card position limit each other to lock the root in the slot.

[0011] In the second state, when the fan body is disengaged from the turntable, an external force, through the operating portion, drives the locking device to move, causing the locking device to disengage from the locking position, allowing the root to be disengaged from the slot. The locking device is reset by releasing the operating portion. The fan body and turntable of the ceiling fan of the present invention can be assembled and disassembled without the use of tools, making the operation simple and easy.

[0012] The above technical solution can also be further improved as follows.

[0013] In a more specific embodiment, the locking device includes a rotating member and an elastic member, the rotating member and the rotating disk are rotatably connected, the rotating member extends from a limit portion and the operating portion, the limit portion and the latch mutually limit each other, and the ends of the elastic member respectively abut the limit portion and the rotating disk. The elastic force of the elastic member causes the limit portion to enter the slot and approach the fan body until the operating portion and the rotating disk abut against each other and limit each other. The elastic member rotates the rotating member, that is, the limit portion is locked into the latch, and at the same time, the operating portion abuts the rotating disk to prevent the rotating member from continuing to rotate, ensuring that the limit portion and the latch mutually limit each other to withstand the centrifugal force when the fan body rotates.

[0014] In a more specific embodiment, a mounting groove is provided on one side of the slot of the turntable, and the locking device is rotatably mounted in the mounting groove. The mounting groove and the slot are in communication, and the elastic force of the elastic member causes the limiting portion to move from the mounting groove into the slot, or the operating portion causes the limiting portion to retract from the slot into the mounting groove, overcoming the elastic force of the elastic member. The mounting groove facilitates rotation and installation of the locking device.

[0015] In a more specific solution, a limiting hole is provided on the circumference of the turntable corresponding to the mounting groove, and the operating part extends out of the turntable through the limiting hole. When the elastic force of the elastic member causes the limiting part to enter the slot from the mounting groove until the operating part abuts against the side wall of one side of the limiting hole,

[0016] The operating part moves toward the other side wall of the limiting hole to drive the rotating part to rotate, so that the limiting part overcomes the elastic force of the elastic part and retracts from the slot into the installation slot. The operating part limits the moving range of the locking device.

[0017] More specifically, the mounting groove has a first positioning portion, the limiting portion has a second positioning portion on the side facing away from the root portion, and the elastic member is a spring. One end of the elastic member is inserted into the first positioning portion for a positioning fit, while the other end of the elastic member is inserted into the second positioning portion for a positioning fit. The elastic member is easy to install and operates stably and reliably.

[0018] More specifically, the turntable end face has a hollowed-out portion connected to a mounting slot, a positioning stud is provided in the mounting slot, and a through-hole is provided in the rotating member. The rotating member is threaded onto the positioning stud through the through-hole. A screw and the positioning stud are threadedly connected, and a nut on the screw restrains the rotating member on the positioning stud, allowing the rotating member to rotate around the positioning stud. The locking device is easy to install.

[0019] More specifically, a protrusion is provided on the side of the root of the fan body. The protrusion and the latch are arranged from the inner end of the root toward the outer end. When the root is inserted into the slot, the protrusion contacts the stopper. As the root is inserted, the protrusion forces the stopper out of the slot until the protrusion and the stopper are disengaged. The elastic force of the elastic member then forces the stopper into the latch. This makes the fan body simple and easy to install.

[0020] More specifically, in the first state, the locking device applies a force to the fan body opposite to the locking device through the locking position, and the fan body abuts against the slot in a direction away from the locking device, making the connection between the fan body and the turntable more secure.

[0021] In a more specific solution, guide grooves are provided on the sides of the slot along the direction of root insertion. The guide grooves avoid the locking device. A corresponding positioning ridge is provided on the side of the root along the direction of root insertion. The positioning ridge avoids the locking device. The positioning ridge is inserted into the guide groove to guide the root into the slot. The locking device causes the positioning ridge to abut against the side of the guide groove away from the locking device. The guide groove and positioning ridge facilitate the directional insertion of the root into the slot, allowing the locking device to stably and reliably lock the root. At the same time, they also withstand the torque generated when the turntable drives the fan blade body to rotate, preventing the locking device from being stressed. The locking device operates stably and reliably, and has a long service life.

[0022] The object of the present invention is to provide a fan with blades that can be assembled and disassembled without tools.

[0023] The object of the present invention is achieved in this way.

[0024] A fan comprises the above-mentioned fan blade quick installation structure. Beneficial effects

[0025] (1) The fan body and the turntable of the present invention can be assembled and disassembled without the use of tools, and the operation is simple and easy.

[0026] (2) The elastic member causes the rotating member to rotate, that is, the limit portion is locked into the locking position. At the same time, the operating portion abuts the turntable to prevent the rotating member from continuing to rotate, ensuring that the limit portion and the locking position are mutually restrained to withstand the centrifugal force when the fan body rotates. The elastic member is simple and easy to install and operates stably.

[0027] (3) The operating part limits the moving range of the locking device, and also makes it convenient for the user to control the locking device through the operating part to release the fixation of the fan blade body, and the fan blade body is easy to disassemble.

[0028] (4) The guide groove and the positioning ridge facilitate the directional insertion of the root into the slot. The locking devices on both sides lock the root stably and reliably. At the same time, they also withstand the torque when the turntable drives the fan blade body to rotate, avoiding the locking device from being stressed. The locking device operates stably and reliably and has a long service life. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] FIG1 is a schematic structural diagram of the first embodiment.

[0030] FIG2 is a schematic diagram of the decomposed structure of the first embodiment.

[0031] FIG3 is a schematic structural diagram of the turntable in the first embodiment.

[0032] FIG4 is a schematic structural diagram of the fan blade body in the first embodiment.

[0033] FIG5 is a schematic structural diagram of the rotating member 5 in the first embodiment.

[0034] FIG6 is a schematic diagram of a partial cross-sectional structure of the first embodiment (first state).

[0035] FIG7 is a schematic diagram of a partial cross-sectional structure of the first embodiment (second state). Modes for Carrying Out the Invention

[0036] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0037] Embodiment 1, referring to Figures 1-7, a quick installation structure for fan blades includes a turntable 1, a fan blade body 2 and a locking device 3. A number of slots 10 are evenly arranged on the circumference of the turntable 1, and the number of slots 10 corresponds to the number of the fan blade body 2. A mounting groove 4 is provided on the side of each slot 10, and the mounting groove 4 is connected to the slot 10. A movable locking device 3 is provided in each mounting groove 4. Guide grooves 11 are provided on the top and bottom surfaces of the slot 10 along the insertion direction of the root 20, and the guide grooves 11 avoid the locking device 3. In this embodiment, the number of guide grooves 11 on the top and bottom surfaces of the slot 10 is different and the upper and lower positions are staggered.

[0038] The turntable 1 has limiting holes 12 on its circumference corresponding to the mounting slot 4. A hollow portion 13 is provided on the end surface of the turntable 1, which communicates with the mounting slot 4. The locking device 3 is mounted in the mounting slot 4 through the hollow portion 13. The mounting slot 4 has a positioning stud 41, and the locking device 3 is rotatably mounted on the positioning stud 41.

[0039] The locking device 3 includes a rotating member 5 and an elastic member 6. The rotating member 5 is rotationally connected to the turntable 1. Extending from the rotating member 5 are a stopper 51 and an operating portion 52. Specifically, the rotating member 5 has a through-hole 50 through which the rotating member 5 is inserted onto the positioning stud 41. A screw 7 is threadedly connected to the positioning stud 41. The nut of the screw 7 restrains the rotating member 5 on the positioning stud 41, allowing the rotating member 5 to rotate around the positioning stud 41.

[0040] The operating portion 52 extends through the stopper hole 12 and out of the turntable 1. The ends of the elastic member 6 abut against the stopper 51 and the mounting slot 4, respectively. The elastic force of the elastic member 6 causes the stopper 51 to move from the mounting slot 4 into the slot 10, thereby causing the locking device 3 to move into the slot 10 and toward the fan body 2, until the operating portion 52 abuts against the sidewall of the stopper hole 12 and is locked. The outer end surface of the operating portion 52 has a serrated friction surface 53, which facilitates the operation of the operating portion 52.

[0041] The mounting groove 4 is provided with a first positioning portion 42, and the limiting portion 51 is provided with a second positioning portion 54 on the side facing away from the root portion 20. The elastic member 6 is a spring, with one end of the elastic member 6 being inserted and positioned in the first positioning portion 42, and the other end of the elastic member 6 being inserted and positioned in the second positioning portion 54. In this embodiment, the first positioning portion 42 is a positioning groove, and the second positioning portion 54 is a positioning protrusion.

[0042] The side surfaces of the root 20 of the fan blade body 2 are provided with latches 21 and protrusions 22. The protrusions 22 and latches 21 are arranged from the inner end of the root 20 toward the outer end. Positioning ridges 23 are provided on the top and bottom surfaces of the root 20 along the insertion direction of the root 20. The positioning ridges 23 avoid the protrusions 22 and latches 21 and are inserted into the guide grooves 11 to guide the root 20 into the slot 10. In this embodiment, the number and position of the positioning ridges 23 correspond to the guide grooves 11 of the slot 10.

[0043] There are two states between the fan body 2 and the locking device 3.

[0044] First state: When the fan body 2 is connected to the turntable 1, the positioning ridge 23 is aligned and inserted into the guide groove 11, so that the root 20 is smoothly inserted into the slot 10. When the root 20 is inserted into the slot 10, the ridge 22 first contacts the limiting portion 51. As the root 20 continues to be inserted, the ridge 22 causes the limiting portion 51 to withdraw from the slot 10 to retract into the installation slot 4 and compress the elastic member 6 until the ridge 22 is out of contact with the limiting portion 51. The elastic force of the elastic member 6 causes the limiting portion 51 to be inserted into the latch 21, that is, the locking device 3 and the fan body 2 are locked and limited to each other. At the same time, the locking device 3 applies a force on the fan body 2 on the side opposite to the locking device 3 through the latch 21, and the fan body 2 abuts against the slot 10 in the direction away from the locking device 3. In this embodiment, the locking device 3 causes the positioning ridge 23 to abut against the side of the guide groove 11 away from the locking device 3. In this way, the connection and fixation between the fan blade body 2 and the turntable 1 are achieved. The fan blade body 2 moves outward under external force (such as centrifugal force), and is restricted by the limiting portion 51 and the elastic member 6. The rotating member 5 cannot move, that is, the limiting portion 51 remains stuck in the locking position 21, that is, the root 20 is locked in the slot 10, thereby achieving the connection and fixation between the fan blade body 2 and the turntable 1.

[0045] Second State: When the fan body 2 is disengaged from the turntable 1, the user activates the operating portion 52, causing the operating portion 52 to move from the sidewall of the limiting hole 12 on one side toward the other sidewall, i.e., toward the fan body 2. The operating portion 52 drives the limiting portion 51 to rotate via the rotating member 5, i.e., the limiting portion 51 exits the slot 10 and retracts into the mounting slot 4, overcoming the elastic force of the elastic member 6. After the limiting portion 51 is disengaged from the latch 21, the root portion 20 can be directly disengaged from the slot 10. When the operating portion 52 is released, the elastic member 6 pushes the locking device 3 to reset, i.e., the limiting portion 51 enters the slot 10 from the mounting slot 4 until the operating portion 52 abuts against the sidewall of the limiting hole 12 on one side.

[0046] The fan blade body 2 and the turntable 1 of the present invention can be installed without using tools, and the operation is simple, easy and fast.

[0047] 1 , the present invention further discloses a fan using a quick blade installation structure. The fan includes but is not limited to a ceiling fan, a turbo fan, and the like.

Claims

1. The quick installation structure of the fan blade, characterized in that including a turntable (1), the circumferential surface of the turntable (1) is provided with a slot (10), and a movable locking device (3) is arranged on the side of the slot (10). The locking device (3) is provided with an operating part (52) extending out of the turntable (1). The locking device (3) has a tendency to enter the slot (10) close to the blade body (2). a blade body (2), and a clamping position (21) is arranged on the side of the root (20) of the blade body (2). There are the following two states between the blade body (2) and the locking device (3): The first state: when the blade body (2) is connected to the turntable (1), the root (20) is inserted into the slot (10), and the locking device (3) and the corresponding clamping position (21) are mutually limited to lock the root (20) in the slot (10). The second state: when the blade body (2) is separated from the turntable (1), an external force drives the locking device (3) to move through the operating part (52), so that the locking device (3) is separated from the clamping position (21), and the root (20) can be separated from the slot (10). When the operating part (52) is released, the locking device (3) resets.

2. The quick installation structure of the fan blade according to claim 1, characterized in that The locking device (3) includes a rotating part (5) and an elastic part (6). The rotating part (5) is rotatably connected to the turntable (1). The rotating part (5) extends out of a limiting part (51) and the operating part (52). The limiting part (51) and the clamping position (21) are mutually limited. The two ends of the elastic part (6) are respectively abutted against the limiting part (51) and the turntable (1). The elastic force of the elastic part (6) makes the limiting part (51) tend to enter the slot (10) close to the blade body (2) until the operating part (52) abuts against the turntable (1) for limiting.

3. The fan blade quick installation structure according to claim 2, characterized in that, The turntable (1) is provided with an installation groove (4) on one side of the slot (10). The locking device (3) is rotatably arranged in the installation groove (4). The installation groove (4) communicates with the slot (10). The elastic force of the elastic part (6) makes the limiting part (51) enter the slot (10) from the installation groove (4), or the operating part (52) makes the limiting part (51) retract into the installation groove (4) from the slot (10) against the elastic force of the elastic part (6).

4. The quick installation structure of the fan blade according to claim 3, characterized in that The turntable (1) is provided with a limiting hole (12) corresponding to the installation groove (4). The operating part (52) passes through the limiting hole (12) and extends out of the turntable (1). When the elastic force of the elastic part (6) makes the limiting part (51) enter the slot (10) from the installation groove (4) until the operating part (52) abuts against the side wall of one side of the limiting hole (12). Moving the operating part (52) towards the side wall of the other side of the limiting hole (12) drives the rotating part (5) to rotate, so that the limiting part (51) retracts into the installation groove (4) from the slot (10) against the elastic force of the elastic part (6).

5. The blade quick installation structure according to claim 3, characterized in that, The installation groove (4) is provided with a first positioning part (42). A second positioning part (54) is arranged on the side of the limiting part (51) facing away from the root (20). The elastic part (6) is a spring. One end of the elastic part (6) is sleeved and positioned in cooperation with the first positioning part (42), and the other end of the elastic part (6) is sleeved and positioned in cooperation with the second positioning part (54).

6. The quick installation structure of the fan blade according to claim 3, characterized in that The end face of the turntable (1) is provided with a hollow part (13) communicating with the installation groove (4). The installation groove (4) is provided with positioning studs (41). The rotating part (5) is provided with through holes (50). The rotating part (5) is sleeved on the positioning studs (41) through the through holes (50). The screw (7) is threadedly connected with the positioning stud (41). The nut of the screw (7) restricts the rotating part (5) on the positioning stud (41). The rotating part (5) rotates around the positioning stud (41).

7. The quick installation structure of the fan blade according to claim 2, characterized in that, On the side of the root (20) of the fan blade body (2), there is also a convex part (22). The convex part (22) and the clamping position (21) are arranged along the inner end to the outer end direction of the root (20). When the root (20) is inserted into the slot (10), the convex part (22) contacts the limiting part (51). As the root (20) is inserted, the convex part (22) makes the limiting part (51) withdraw from the slot (10) until the convex part (22) is disengaged from the limiting part (51). The elastic force of the elastic part (6) makes the limiting part (51) insert into the clamping position (21).

8. The quick installation structure of the fan blade according to claim 1, characterized in that, In the first state, the locking device (3) exerts a force on the fan blade body (2) on the side opposite to the locking device (3) through the clamping position (21). The fan blade body (2) abuts against the slot (10) in the direction away from the locking device (3).

9. The quick installation structure of the fan blade according to claim 8, characterized in that, On the side of the slot (10) along the insertion direction of the root (20), there are guiding grooves (11). The guiding grooves (11) avoid the locking device (3). Correspondingly, on the side of the root (20) along the insertion direction of the root (20), there are positioning convex strips (23). The positioning convex strips (23) avoid the clamping position (21). The positioning convex strips (23) are inserted into the guiding grooves (11) to guide the root (20) to be inserted into the slot (10). The locking device (3) makes the positioning convex strips (23) abut against the side of the guiding groove (11) away from the locking device (3).

10. A fan, characterized in that, Comprising the fan blade quick installation structure according to any one of claims 1-9.

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