Patent Application
20250207606
This application claims priority to Chinese Patent Application No. 202311795639.9, filed on Dec. 25, 2023, which is hereby incorporated by reference in its entirety.
The present invention relates to the field of fan technology, particularly to a fan blade quick installation structure and a fan using the same.
At present, ceiling fans on the market comprise a turntable and several fan blades, which are fastened together by a plurality of bolts. In order to reduce volume, the fan blades and turntable are separated when a ceiling fan is packaged for transport, and users need to assemble them themselves using appropriate tools. This type of ceiling fan can be disassembled and assembled without the use of tools.
The purpose of the present invention is to provide a fan blade quick installation structure that can be assembled and disassembled without the use of tools.
The purpose of the present invention is achieved as follows
The above technical solution can be further improved as follows.
In a more specific solution, the locking device comprises a rotating member and an elastic member, the rotating member and turntable are rotatably connected, the rotating member extends out of limiting portion and operating portion, the limiting portion and locking position are mutually limited, and the two ends of elastic member are respectively in contact with the limiting portion and turntable, the elastic force of elastic member causes the limiting portion to enter the slot and approach fan blade body until the operating portion and the turntable are mutually limited. The elastic member causes the rotating member to rotate, which means that the limiting portion will be stuck in the locking position and at the same time, the operating portion is pressed against the turntable to prevent the rotating member from continuous rotation, ensuring that the limiting portion and locking position are mutually limited to withstand the centrifugal force from the rotating fan blade body.
In a more specific solution, the turntable is provided with an installation groove on one side of the slot, the locking device is rotatably disposed in the installation groove that is connected to the slot, and the elastic force of elastic member causes limiting portion to enter the slot from the installation groove, or the operating portion causes the limiting portion to overcome the elastic force of elastic member and to retract back into the installation groove from the slot. The installation groove facilitates the rotation and installation of locking device.
In a more specific solution, a limiting hole is provided on the circumferential surface of turntable corresponding to the installation groove, the operating portion extends out of the turntable through the limiting hole, and when the elastic force of elastic member causes the limiting portion to enter the slot from the installation groove until the operating portion is in contact with one side wall of the limiting hole, the operating portion moves towards the other side wall of the limiting hole to drive the rotating member to rotate, so that the limiting portion overcomes the elastic force of elastic member and returns into the installation groove from the slot. The operating portion restricts the movement range of locking device.
In a more specific solution, the installation groove is provided with a first positioning portion, the side of limiting portion facing away from the root is provided with a second positioning portion, the elastic member is a spring, and one end of elastic member is sleeved on the first positioning portion to maintain positioning fit, and the other end of elastic member is sleeved on the second positioning portion to maintain positioning fit. The elastic member is easy to install and operates stably and reliably.
In a more specific solution, the end face of turntable is provided with a hollow part connected to the installation groove, the installation groove is provided with a positioning screw, the rotating member is provided with a through hole, the rotating member is threaded on the positioning screw through the through hole, the screw and positioning screw are thread connected, and the nut of screw restricts the rotating member to the positioning screw, and the rotating member rotates around the positioning screw. The locking device is easy to install.
In a more specific solution, a convex portion is further provided on the side of the root of fan blade body, and the convex portion and locking position are disposed along the inner end of root toward the outer end and, when the root is inserted into the slot, the convex portion comes into contact with the limiting portion, and along with the insertion of root, the convex portion causes the locking position to exit the slot until the convex portion disengages from the limiting portion, and the elastic force of elastic member causes the limiting portion to be inserted into the locking position.
In a more specific solution, in the first state, the locking device applies force to the fan blade body on the side opposite to locking device through the locking position, and the fan blade body is in contact with the slot in the direction away from the locking device. The connection between the fan blade body and the turntable is more secure.
In a more specific solution, a guide groove is provided on the side of slot along the insertion direction of root, and the guide groove avoids the locking device, a positioning convex strip is provided on the side of the corresponding root along the insertion direction of root, and the positioning convex strip avoids the locking position and is inserted into guide groove to guide the root into the slot, and the locking device makes the positioning convex strip in contact with the guide groove away from the locking device. The guide groove and positioning convex strip facilitate the directional insertion of root into the groove, and the locking device stably and reliably locks the root and, at the same time, bears the torque when the turntable drives the fan blade body to rotate, avoiding the locking device from being subjected to force. The locking device operates stably and reliably, with a long service life.
The purpose of the present invention is to provide a fan with fan blades that can be assembled and disassembled without the use of tools.
The purpose of the present invention is realized in this way.
A fan comprising the aforementioned fan blade quick installation structure.
The present invention has the following beneficial effects.
The present invention will be further described in conjunction with the accompanying drawings and embodiments.
In Embodiment 1, as shown in
A limiting hole 12 is provided on the circumferential surface of turntable 1 corresponding to the installation groove 4, the end face of turntable 1 is provided with a hollow part 13 connected to the installation groove 4, and the locking device 3 is installed in the installation groove 4 through the hollow part 13. The installation groove 4 is provided with a positioning screw (41), and the locking device 3 is rotatably disposed on the positioning screw 41.
The locking device 3 comprises a rotating member 5 and an elastic member 6. Rotating member 5 is rotatably connected to turntable 1, with rotating member 5 extending beyond limiting portion 51 and operating portion 52. Specifically, the rotating member 5 is provided with a through hole 50, the rotating member 5 is threaded on the positioning screw 41 through the through hole 50, the screw 7 and positioning screw 41 are thread connected, and the nut of screw 7 restricts the rotating member 5 to the positioning screw 41, and the rotating member 5 rotates around the positioning screw 41.
The operating portion 52 extends out of the turntable 1 through the limit hole 12. The two ends of elastic member (6) are respectively in contact with the limiting portion 51 and installation groove 4, the elastic force of elastic member 6 causes the limiting portion 51 to enter the slot 10 and approach fan blade body 2 until the operating portion 52 comes into contact with the side wall of limiting hole 12 to limit the position. The outer surface of operating portion 52 is a serrated friction surface 53, which is convenient for moving the operating portion 52.
The installation groove 4 is provided with a first positioning portion 42, the side of limiting portion 51 facing away from the root 20 is provided with a second positioning portion 54, the elastic member 6 is a spring, and one end of elastic member 6 is sleeved on the first positioning portion 42 to maintain positioning fit, and the other end of elastic member 6 is sleeved on the second positioning portion 54 to maintain positioning fit. In this embodiment, the first positioning portion 42 is a positioning groove, and the second positioning portion 54 is a positioning protrusion.
A locking position 21 and convex portion 22 are further provided on the side of root 20 of fan blade body 2, and the convex portion 22 and locking position 21 are disposed along the inner end of root 20 toward the outer end. A positioning convex strip 23 is provided on the side of the corresponding root 20 along the insertion direction of root 20, and the positioning convex strip 23 avoids the locking position 21 and is inserted into guide groove 11 to guide root 20 into the slot (10). In this embodiment, the number and position of positioning protrusions 23 are set corresponding to the guide grooves 11 of the slot 10.
There are two states between the fan blade body 2 and locking device 3.
First state: When the fan blade body 2 is connected to the turntable 1, the positioning protrusion 23 is aligned to insert into the guide groove 11, so that the root 20 is smoothly inserted into the slot 10. The root 20 is inserted into the slot 10, the convex portion 22 comes into contact with the limiting portion 51, and along with the insertion of root 20, the convex portion 22 causes the locking position 51 to exit the slot 10 and retract into installation groove 4, and compress elastic member 6 until the convex portion 22 disengages from the limiting portion 51, and the elastic force of elastic member 6 causes the limiting portion 51 to be inserted into the locking position 21. The locking device 3 and the fan blade body 2 are mutually locked and limited, and at the same time, the locking device 3 applies force to the fan blade body 2 on the side opposite to locking device 3 through the locking position 21, and the fan blade body 2 is in contact with the slot 10 in the direction away from the locking device 3.
In this embodiment, the locking device 3 causes the positioning protrusion 23 to be in contact with the guide groove 11 on the side away from the locking device 3. The fan blade body 2 and turntable 1 are fixedly connected in this way, and the fan blade body 2 moves outward under the action of external force (such as centrifugal force), the rotating member 5 cannot move because of the restriction by the limiting portion 51 and elastic member 6, that is, the limiting portion 51 remains stuck in the locking position 21, the root 20 is locked in the slot 10, and the fan blade body 2 and turntable 1 are fixedly connected.
The second state: when the fan blade body (2) is separated from the turntable (1), the user pulls the operating portion 52, and the operating portion 52 moves from one side wall of limit hole 12 towards the other side wall, that is, towards the direction of fan blade body 2. Operating portion 52 drives limiting portion 51 to rotate through rotating member 5, that is, the limiting portion 51 exits the slot 10 to retract into the installation groove 4 and to overcome the elastic force of elastic member 6, and after the limiting portion 51 disengages from the locking position 21, the root 20 can be directly disengaged from the slot 10. When the operating portion 52 is released, the elastic member 6 pushes locking device 3 to reset, that is, limiting portion 51 enters the slot (10) from installation groove 4 until the operating portion 52 is in contact with the side wall of limit hole 12.
The fan blade body 2 and turntable 1 of the present invention can be simply, easily and quickly installed without the use of.
As shown in
| Number | Date | Country | Kind |
|---|---|---|---|
| 202311795639.9 | Dec 2023 | CN | national |
