Rotary fan with easy assembly and disassembly

Abstract

The utility model provides a kind of rotatable disc fan convenient to dismount, including rotatable disc and fan blade installed in rotatable disc, rotatable disc is equipped with containing cavity and the avoidance slot being communicated in containing cavity along radial direction, fan blade has the installation portion inserted in avoidance slot, installation portion is equipped with the clamping groove;It further includes fixed cover, joint part, elastic member and locking member, fixed cover is located in containing cavity, and is connected to rotatable disc, fixed cover and rotatable disc form the containing gap for accommodating fan blade in axial direction, fixed cover and installation portion are equipped with corresponding locking hole respectively;Joint part is movably connected to fixed cover or rotatable disc, joint part has the joint portion adapted to clamping groove;Elastic member is configured with the pre-tightening force of making joint portion and clamping groove keep joint state;Locking member is inserted in locking hole, for connecting fixed cover and fan blade.The rotatable disc fan convenient to dismount provided by the utility model aims at solving the problem that rotatable disc fan is inconvenient to dismount, and needs to find right positioning when installing fan blade, leading to the problem of low installation efficiency.

Description

Technical Field

[0001] This utility model belongs to the field of fan technology, and more specifically, it relates to a rotary fan that is easy to assemble and disassemble. Background Technology

[0002] For disc fans, in order to facilitate transportation and storage, they are usually packaged with the disc and fan blades separated. Users need to assemble the fan blades and disc themselves after purchase.

[0003] In existing technologies, fan blades are typically fixed using screws, requiring users to tighten or loosen them during assembly and disassembly.

[0004] The installation and removal of fan blades using screws is inconvenient. While clip-on methods exist, which simplify blade installation, removing the blades requires significant disassembly of the ceiling fan to expose the clips within the turntable. The clips must then be manually pressed to release them from their restraints, allowing the blades to be removed from the turntable, making the process complex and cumbersome. Furthermore, these methods necessitate alignment and positioning when fixing the blades, adding to the installation steps and resulting in low efficiency, negatively impacting the user experience. Utility Model Content

[0005] The purpose of this utility model is to provide a rotary fan that is easy to disassemble and assemble, in order to solve the problems of inconvenient disassembly and assembly of rotary fans and the need for alignment and positioning when installing fan blades, which leads to low installation efficiency.

[0006] To achieve the above objectives, the technical solution adopted by this utility model is as follows:

[0007] A rotary fan that is easy to assemble and disassemble includes a rotary disk and fan blades mounted on the rotary disk. The rotary disk has a receiving cavity and a relief groove communicating radially with the receiving cavity. The fan blades have a mounting portion inserted into the relief groove, and the mounting portion has a retaining groove. The fan also includes:

[0008] A fixed cover is disposed in the receiving cavity and connected to the turntable. The fixed cover and the turntable form a receiving gap in the axial direction for receiving the fan blade. The fixed cover and the mounting part are respectively provided with corresponding locking holes.

[0009] A snap-fit ​​element is movably connected to the fixed cover or the turntable and located within the receiving gap; the snap-fit ​​element has a snap-fit ​​portion adapted to the slot.

[0010] The elastic element is configured with a preload to maintain the engagement between the engaging portion and the slot; and

[0011] A locking element is inserted into the locking hole to connect the fixing cover and the fan blade;

[0012] The fan blade passes radially through the clearance groove and is inserted into the receiving gap. Under the action of the elastic member, the locking part remains locked with the locking groove.

[0013] In one possible implementation, the fixed cover includes a cover plate and a limiting flange connected to the outer edge of the cover plate. The limiting flange abuts against the turntable axially. The turntable fan, which is easy to assemble and disassemble, also includes a compensating spring connected to the limiting flange. The end face of the mounting part abuts against the compensating spring radially.

[0014] In one possible implementation, the fixing cover has a guide block, and the mounting portion has a guide groove adapted to the guide block, wherein the guide block and the guide groove are radially inserted into each other.

[0015] In one possible implementation, the easily detachable turntable fan further includes a connecting post with a connecting hole, the connecting post being connected to the turntable or the fixed cover, the snap-fit ​​being rotatably sleeved on the connecting post, and a limiting member being inserted into the connecting hole, the limiting member limiting the snap-fit ​​in the axial direction, so that the snap-fit ​​only has circumferential degree of freedom.

[0016] In one possible implementation, the fixing cover is further provided with a limiting groove, the connecting post is disposed in the limiting groove, the elastic element is sleeved on the outside of the connecting post and disposed in the limiting groove, and the limiting groove is used to fix the elastic element.

[0017] In one possible implementation, the easily detachable rotary fan further includes a locking member connected to the side of the fixed cover away from the fan blades. The locking member has a clearance hole corresponding to the locking hole, and the locking member also has a locking groove communicating with the clearance hole. The locking member includes an insertion part and a locking part connected at an angle to the insertion part. The insertion part is inserted into the clearance hole and the locking hole to achieve radial positioning of the fixed cover and the mounting part. The locking part is inserted into the locking groove and locked with the locking groove.

[0018] In one possible implementation, the locking groove includes a guide area, a transition area, and a locking area that are interconnected. The locking part enters the locking groove from the guide area. When the easily detachable turntable fan is running, the locking part locks with the locking area under the action of centrifugal force.

[0019] In one possible implementation, the turntable has a mounting platform located within the receiving cavity, the mounting platform being used to provide support for the fan blades, and the locking hole being formed in the mounting platform.

[0020] In one possible implementation, the fixed cover and the turntable have corresponding fixed holes, and the easily detachable turntable fan also includes a fixing member inserted into the fixed hole.

[0021] In one possible implementation, the snap-fit ​​component further includes a drive portion that extends beyond the receiving gap after the snap-fit ​​portion engages with the slot.

[0022] The advantages of this easily detachable rotary fan are as follows: Compared with the prior art, the mounting part of the fan blade passes radially through the clearance groove and inserts into the receiving gap. As the mounting part is inserted, it applies a resisting force to the snap-fit ​​component, causing the snap-fit ​​component to overcome the elastic force of the elastic component until the snap-fit ​​part of the snap-fit ​​component is engaged with the slot, and the engagement is maintained under the action of the elastic component. The locking component is then sequentially inserted into the locking holes of the fixing cover and the mounting part to connect the fixing cover and the fan blade. The snap-fit ​​component used in this invention automatically engages with the slot of the mounting part under the pre-tightening force of the elastic element, enabling rapid pre-positioning of the fan blades without manual alignment, significantly improving installation efficiency. Simultaneously, the accommodating gap formed by the fixed cover and the turntable axially limits the fan blade mounting part, and together with the locking component inserted into the locking hole, achieves double fixation of the fan blades. This ensures the stability of the fan blades during high-speed rotation and avoids the problem of extensive turntable disassembly required when disassembling a single snap-fit ​​structure. Simply loosen the locking component and move the snap-fit ​​component to pull the fan blades radially out. The disassembly and assembly process is simple and quick, effectively solving the problems of inconvenient disassembly and assembly and low installation efficiency of existing turntable fans. Attached Figure Description

[0023] To more clearly illustrate the technical solutions in the embodiments of this utility model, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0024] Figure 1 A partial schematic diagram of a rotary fan that is easy to assemble and disassemble, provided for an embodiment of this utility model;

[0025] Figure 2 for Figure 1 Enlarged view of part A in the middle;

[0026] Figure 3 This is a partial schematic diagram of the fan blades and fixing cover used in an embodiment of the present utility model;

[0027] Figure 4 This is another partial schematic diagram of the fan blades and fixing cover used in an embodiment of the present utility model;

[0028] Figure 5 This is a schematic diagram of the structure of the fixing cover used in an embodiment of this utility model;

[0029] Figure 6 This is a schematic diagram of the turntable used in an embodiment of the present invention.

[0030] In the diagram: 1. Turntable; 101. Receiving cavity; 102. Clearance groove; 103. Mounting platform; 104. Reinforcing column; 1041. Fixing hole; 2. Fan blade; 201. Mounting part; 2011. Slot; 3. Fixing cover; 301. Cover plate; 302. Limiting flange; 303. Locking part; 3031. Locking groove; 3031-1. Guide area; 3031-2. Transition area; 3031-3. Locking area; 3032. Clearance hole; 304. Guide block; 305. Limiting groove; 4. Locking part; 401. Locking part; 402. Insertion part; 5. Snap-fit ​​part; 6. Compensating spring; 7. Fixing part; 8. Elastic part; 9. Connecting column; 901. Connecting hole. Detailed Implementation

[0031] To make the technical problems, technical solutions, and beneficial effects of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present utility model and are not intended to limit the present utility model.

[0032] In the claims, description, and accompanying drawings of this utility model, unless otherwise expressly defined, the terms "first," "second," or "third," etc., are used to distinguish different objects, not to describe a specific order. Unless otherwise stated, other directional terms, such as "vertical," "clockwise," and "counterclockwise," indicate orientation or positional relationships based on the orientation and positional relationships shown in the accompanying drawings, and are only for the convenience of describing the utility model and simplifying the description, not to indicate or imply that the referred device or element must have a specific orientation or be constructed and operated in a specific orientation, and therefore should not be construed as limiting the specific scope of protection of this utility model. In the claims, description, and accompanying drawings of this utility model, unless otherwise expressly defined, the terms "fixed connection" or "fixed connection" should be interpreted broadly, that is, any connection method in which there is no displacement relationship or relative rotation relationship between the two, that is, including non-removable fixed connection, detachable fixed connection, integral connection, and fixed connection through other devices or elements. In the claims, description, and accompanying drawings of this utility model, the terms "comprising," "having," and their variations are intended to mean "including but not limited to."

[0033] It should be noted that the terms "axial" and "radial" in this application are directional definitions with reference to the turntable.

[0034] Please refer to the following: Figures 1 to 6 The present invention provides a rotary fan that is easy to assemble and disassemble. The rotary fan includes a rotary disk 1 and fan blades 2 mounted on the rotary disk 1. The rotary disk 1 has a receiving cavity 101 and a relief groove 102 radially communicating with the receiving cavity 101. The fan blades 2 have a mounting portion 201 inserted into the relief groove 102, and the mounting portion 201 has a locking groove 2011. The fan also includes a fixing cover 3, a snap-fit ​​member 5, an elastic member 8, and a locking member 4. The fixing cover 3 is disposed in the receiving cavity 101 and connected to the rotary disk 1. The fixing cover 3 and the rotary disk 1 form a receiving gap in the axial direction for accommodating the fan blades 2. The fixed cover 3 and the mounting part 201 are respectively provided with corresponding locking holes; the snap-fit ​​member 5 is movably connected to the fixed cover 3 or the turntable 1 and is located in the receiving gap. The snap-fit ​​member 5 has a snap-fit ​​part adapted to the snap-fit ​​groove 2011; the elastic member 8 is provided with a pre-tightening force to keep the snap-fit ​​part and the snap-fit ​​groove 2011 in a snap-fit ​​state; the locking member 4 is inserted into the locking hole and is used to connect the fixed cover 3 and the fan blade 2; the fan blade 2 passes radially through the relief groove 102 and is inserted into the receiving gap. Under the action of the elastic member 8, the snap-fit ​​part and the snap-fit ​​groove 2011 are kept in a snap-fit ​​state.

[0035] The rotary fan provided by this utility model, which is easy to assemble and disassemble, compared with the prior art, has its mounting part 201 of the fan blade 2 inserted radially through the relief groove 102 into the receiving gap. As the mounting part 201 is inserted, it applies a resisting force to the snap-fit ​​member 5, causing the snap-fit ​​member 5 to overcome the elastic force of the elastic member 8, until the snap-fit ​​part of the snap-fit ​​member 5 is snapped into the slot 2011, and the snap-fit ​​state is maintained under the action of the elastic member 8. The locking member 4 is then inserted into the locking hole of the fixing cover 3 and the mounting part 201 in sequence to connect the fixing cover 3 and the fan blade 2. The snap-fit ​​component 5 used in this invention automatically snaps into the slot 2011 of the mounting part 201 under the pre-tightening force of the elastic component 8, which can quickly pre-position the fan blade 2 without manual alignment and positioning, significantly improving installation efficiency. At the same time, the accommodating gap formed by the fixing cover 3 and the turntable 1 can axially limit the mounting part 201 of the fan blade 2. With the locking component 4 inserted into the locking hole, the fan blade 2 is double-fixed, which not only ensures the stability of the fan blade 2 when rotating at high speed, but also avoids the problem of having to disassemble the turntable 1 extensively when disassembling a single snap-fit ​​structure. The fan blade 2 can be pulled out radially simply by loosening the locking component 4 and moving the snap-fit ​​component 5. The disassembly and assembly process is simple and quick, effectively solving the problems of inconvenient disassembly and assembly and low installation efficiency of the existing turntable 1 fan.

[0036] Optionally, the snap-fit ​​member 5 is rotatably or slidably connected to the fixed cover 3. For example, the snap-fit ​​member 5 is rotatably connected to the fixed cover 3 about a first axis, which is perpendicular to the surface of the fixed cover 3.

[0037] Specifically, the fixed cover 3 has a guide groove for accommodating the mounting part 201. After the fan blade 2 is radially installed in place, the end of the mounting part 201 abuts against the fixed cover 3, thereby limiting the radial movement of the fan blade 2.

[0038] Optionally, the elastic element 8 is a torsion spring.

[0039] In some embodiments, please refer to Figure 5 The fixed cover 3 includes a cover plate 301 and a limiting flange 302 connected to the outer edge of the cover plate 301. The limiting flange 302 abuts against the turntable 1 along the axial direction. The turntable fan, which is easy to install and remove, also includes a compensating spring 6 connected to the limiting flange 302. The end face of the mounting part 201 abuts against the compensating spring 6 along the radial direction.

[0040] In this embodiment, a compensating spring 6 is added to the limiting flange 302 of the fixed cover 3, so that the mounting part 201 of the fan blade 2 can tightly abut against the compensating spring 6 when radially inserted. This effectively compensates for the gap problem caused by tolerances during manufacturing and assembly, and avoids vibration or noise caused by loosening of the fan blade 2. This structure ensures the stable installation of the fan blade 2 while further improving the assembly accuracy, reducing the installation difficulties caused by dimensional deviations, and enhancing the overall stability and smooth operation of the product. In addition, the elastic characteristics of the compensating spring 6 can adapt to fan blades 2 with different tolerance ranges, improving the versatility of parts and the assembly fault tolerance rate, and reducing production costs.

[0041] Optionally, the compensation spring 6 is a metal or plastic spring that is screwed or snapped onto the fixing cover 3.

[0042] In some embodiments, please refer to Figure 3 and Figure 5 The fixed cover 3 has a guide block 304, and the mounting part 201 has a guide groove adapted to the guide block 304. The guide block 304 and the guide groove are inserted and engaged radially.

[0043] This embodiment, by setting a guide block 304 on the fixed cover 3 and opening a corresponding guide groove on the end face of the fan blade 2 mounting part 201, allows the fan blade 2 to automatically align itself during radial insertion through the precise cooperation between the guide block 304 and the guide groove, eliminating the need for manual angle adjustment, simplifying the installation process and improving assembly efficiency. The guide block 304 effectively avoids misalignment or deviation during fan blade 2 installation, ensuring a more precise and reliable connection between the fan blade 2 and the turntable 1, thereby improving the balance and stability of the fan during operation and reducing vibration and noise. Simultaneously, this plug-in guide design further enhances the radial positioning accuracy of the fan blade 2, making the force on the fan blade 2 more even during high-speed rotation, extending the product's service life, and reducing the risk of wear or failure due to improper installation.

[0044] Optionally, the guide block 304 and the fixing cover 3 can be an integral component or separate components, such as screwed or snapped, or they can be glued or welded.

[0045] In some embodiments, please refer to Figure 5 The easy-to-disassemble turntable fan also includes a connecting post 9 with a connecting hole 901. The connecting post 9 is connected to the turntable 1 or the fixed cover 3. The snap-fit ​​part 5 is rotatably sleeved on the outside of the connecting post 9. A limiting part is inserted into the connecting hole 901. The limiting part limits the snap-fit ​​part 5 in the axial direction, so that the snap-fit ​​part 5 only has the circumferential degree of freedom.

[0046] A connecting post 9 with a connecting hole 901 is provided on the fixed cover 3, and the snap-fit ​​part 5 is sleeved on the connecting post 9. Simultaneously, with the constraint of the limiting component, the snap-fit ​​part 5 retains only the circumferential rotational freedom, ensuring the stability of the snap-fit ​​part 5 under the action of the elastic component 8, and preventing axial movement or radial displacement of the snap-fit ​​part 5 under vibration or external force interference. This structure improves the working reliability of the snap-fit ​​part 5 through mechanical limiting, ensuring precise alignment during the assembly and disassembly of the fan blade 2, avoiding installation difficulties or fixing failures caused by misalignment of the snap-fit ​​part 5. At the same time, the limiting component prevents the snap-fit ​​part 5 from developing positional deviations due to fatigue or wear during long-term use, effectively extending the service life of the snap-fit ​​part 5 and enhancing the product's durability under frequent assembly and disassembly conditions. Furthermore, opening the connecting hole 901 on the connecting post 9 avoids the problem of weak strength in the area around the connecting hole 901 caused by directly opening the connecting hole 901 on the fixed cover 3, reducing the probability of deformation and damage to the fixed cover 3.

[0047] In some embodiments, please refer to Figure 5 The fixed cover 3 also has a limiting groove 305. The connecting post 9 is located in the limiting groove 305, and the elastic element 8 is sleeved on the outside of the connecting post 9 and located in the limiting groove 305. The limiting groove 305 is used to fix the elastic element 8.

[0048] The elastic element 8 is located within the limiting groove 305, thereby limiting the elastic element 8 through the limiting groove 305. This eliminates the need for additional locking components to fix the elastic element 8, simplifying the installation process, saving connecting parts, and improving installation efficiency. This structure also significantly improves the working stability of the elastic element 8, ensuring that the snap-fit ​​part and the snap-fit ​​groove 2011 always maintain a reliable snap-fit ​​state, avoiding the problem of the fan blade 2 loosening due to displacement of the elastic element 8.

[0049] Specifically, the elastic element 8 is a torsion spring, the limiting groove 305 includes a main limiting area and a sub-limiting area, one of the torsion arms of the torsion spring is engaged in the sub-limiting area, and the main body of the torsion spring and the connecting post 9 are located in the main limiting area.

[0050] In some embodiments, please refer to Figure 2 and Figure 3The easy-to-disassemble rotary fan also includes a locking member 303 connected to the side of the fixed cover 3 away from the fan blade 2. The locking member 303 has a relief hole 3032 corresponding to the locking hole. The locking member 303 also has a locking groove 3031 communicating with the relief hole 3032. The locking member 4 includes an insertion part 402 and a locking part 401 connected to the insertion part 402 at an angle. The insertion part 402 is inserted into the relief hole 3032 and the locking hole to achieve radial positioning of the fixed cover 3 and the mounting part 201. The locking part 401 is inserted into the locking groove 3031 and locked with the locking groove 3031.

[0051] The insertion part 402 of the locking component 4 passes through the clearance hole 3032 and the locking hole to achieve radial positioning, while the engagement of the locking part 401 and the locking groove 3031 forms circumferential and axial locking, effectively preventing the locking component 4 from loosening and falling off due to vibration during fan operation. This not only significantly improves the stability of the fan blade 2 installation and ensures safety during high-speed operation, but also makes installation and disassembly simple and quick through the plug-in locking method. During installation, simply insert and rotate to lock; during disassembly, rotate in the opposite direction to unlock, greatly improving the convenience of user disassembly and maintenance.

[0052] Optionally, the locking groove 3031 is formed along the circumference of the locking member 303. For example, the locking groove 3031 is a spiral groove, and the side of the spiral groove away from the fixed cover 3 is axially connected to the outside, and the side near the fixed cover 3 has a fixing area that locks with the locking member 4, and the fixing area limits the circumferential movement of the locking member 303.

[0053] In some embodiments, please refer to Figure 4 The locking groove 3031 includes a guide area 3031-1, a transition area 3031-2, and a locking area 3031-3 that are interconnected. The locking part enters the locking groove 3031 from the guide area 3031-1. When the turntable fan, which is easy to disassemble and assemble, is running, the locking part locks with the locking area 3031-3 under the action of centrifugal force.

[0054] The locking groove 3031 has a guide area 3031-1, a transition area 3031-2, and a locking area 3031-3, realizing the self-locking function of the locking component 4. During installation, the locking part can smoothly slide in along the guide area 3031-1, naturally position itself through the transition area 3031-2, and finally automatically enter the locking area 3031-3 to complete the locking process when the fan is running, thanks to centrifugal force. This process requires no additional manual operation, significantly improving installation convenience. When the fan is running, the centrifugal force generated by the increased speed forces the locking part to fit tightly against the locking area 3031-3, forming a self-locking effect that tightens with each rotation, effectively solving the problem of loosening under high-speed operation in traditional fixing methods, and greatly improving operational safety.

[0055] Optionally, under the action of centrifugal force, the locking part extends radially along the turntable 1.

[0056] In some embodiments, please refer to Figure 6 The turntable 1 has a mounting platform 103 located in the receiving cavity 101. The mounting platform 103 is used to provide support for the fan blade 2. Locking holes are opened in the mounting platform 103.

[0057] The mounting platform 103 within the receiving cavity 101 provides a direct support structure for the fan blade 2. When the mounting portion 201 of the fan blade 2 is inserted into the receiving gap, the mounting platform 103 can bear the weight of the fan blade 2 and the axial force generated during rotation, preventing the fan blade 2 from tilting or wobbling due to uneven force, thus improving the stability of the fan blade 2 after installation. The locking hole is located on the mounting platform 103, making the fixing position of the locking element 4 closer to the center of gravity of the fan blade 2, enhancing the mechanical transmission efficiency of the locking structure, and effectively reducing the risk of loosening of the fan blade 2 due to centrifugal force during high-speed rotation.

[0058] In some embodiments, please refer to Figure 6 The fixed cover 3 and the turntable 1 are provided with corresponding fixing holes 1041. The turntable fan, which is easy to install and remove, also includes a fixing piece 7 inserted into the fixing hole 1041.

[0059] The fixed cover 3 and the turntable 1 have corresponding fixing holes 1041 and are connected by a fixing member 7. The fixed cover 3 is installed in the receiving cavity 101 of the turntable 1 to form a stable mounting reference surface. The cooperation between the fixing hole 1041 and the fixing member 7 facilitates the quick disassembly and maintenance of the fixed cover 3. When it is necessary to inspect or replace internal components, the fixed cover 3 and the turntable 1 can be separated simply by removing the fixing member 7. The operation is simple and does not affect the independent disassembly and assembly of the fan blades 2. This design, by optimizing the fixing connection method, further improves the assembly convenience and maintenance efficiency of the fan of the turntable 1 while ensuring the overall structural stability, thus taking into account both reliability and practicality.

[0060] Optionally, the fastener 7 can be a screw-on component or a snap-on component.

[0061] In some embodiments, please refer to Figure 3 The snap-fit ​​component 5 also has a drive unit. After the snap-fit ​​component snaps into the slot, the drive unit extends out of the receiving gap.

[0062] After the snap-fit ​​part is snapped into the slot, the drive part extends beyond the receiving gap. When it is necessary to disassemble the fan blade, force can be applied to the drive part to make the snap-fit ​​part 5 overcome the elastic force of the elastic member 8, and separate the snap-fit ​​part from the slot, thereby unlocking the fan blade 2 and facilitating the disassembly of the fan blade 2.

[0063] In some embodiments, please refer to Figure 6 The turntable 1 has a plurality of reinforcing columns 104 located in the receiving cavity 101. The reinforcing columns 104 have fixing holes 1041, and the free ends of the plurality of reinforcing columns 104 are located on the same plane.

[0064] Multiple reinforcing columns 104 are provided in the receiving cavity 101 of the turntable 1, with fixing holes 1041 and their free ends located on the same plane. On the one hand, the three-dimensional structure of the reinforcing columns 104 significantly improves the structural strength of the connection between the turntable 1 and the fixing cover 3, effectively disperses the stress generated when the fixing parts 7 are tightened, and avoids deformation of the turntable 1 or the fixing cover 3 due to excessive local stress. This enhances the vibration resistance and load-bearing capacity of the overall structure and ensures the connection stability between the fixing cover 3 and the turntable 1 when the fan is running at high speed. On the other hand, the coplanar design of the free ends of the multiple reinforcing columns 104 provides a flat installation support surface for the fixing cover 3, ensuring that the fixing cover 3 remains parallel to the turntable 1 after installation. This makes the axial spacing of the receiving gap uniform and consistent, thereby ensuring that the fan blade 2 mounting part 201 is subjected to balanced force within the receiving gap. This avoids the problem of misalignment between the snap-fit ​​part 5 and the snap-fit ​​groove 2011 or uneven force on the locking part 4 due to the tilt of the mounting surface.

[0065] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A rotary fan that is easy to assemble and disassemble, characterized in that, The system includes a turntable and fan blades mounted on the turntable. The turntable has a receiving cavity and a relief groove communicating radially with the receiving cavity. The fan blades have a mounting portion inserted into the relief groove, and the mounting portion has a retaining groove. The system also includes: A fixed cover is disposed in the receiving cavity and connected to the turntable. The fixed cover and the turntable form a receiving gap in the axial direction for receiving the fan blade. The fixed cover and the mounting part are respectively provided with corresponding locking holes. A snap-fit ​​element is movably connected to the fixed cover or the turntable and located within the receiving gap; the snap-fit ​​element has a snap-fit ​​portion adapted to the slot. The elastic element is configured with a preload to maintain the engagement between the engaging portion and the slot; and A locking element is inserted into the locking hole to connect the fixing cover and the fan blade; The fan blade passes radially through the clearance groove and is inserted into the receiving gap. Under the action of the elastic member, the locking part remains locked with the locking groove.

2. The easily detachable rotary fan as described in claim 1, characterized in that, The fixed cover includes a cover plate and a limiting flange connected to the outer edge of the cover plate. The limiting flange abuts against the turntable along the axial direction. The turntable fan that is easy to assemble and disassemble also includes a compensating spring connected to the limiting flange. The end face of the mounting part abuts against the compensating spring along the radial direction.

3. The easily detachable rotary fan as described in claim 1, characterized in that, The fixed cover has a guide block, and the mounting part has a guide groove adapted to the guide block. The guide block and the guide groove are inserted into each other radially.

4. The easily detachable rotary fan as described in claim 1, characterized in that, The easily detachable turntable fan also includes a connecting post with a connecting hole. The connecting post is connected to the turntable or the fixed cover. The snap-fit ​​component is rotatably sleeved on the connecting post. A limiting component is inserted into the connecting hole. The limiting component limits the snap-fit ​​component in the axial direction, so that the snap-fit ​​component only has circumferential freedom.

5. The easily detachable rotary fan as described in claim 4, characterized in that, The fixing cover also has a limiting groove, the connecting post is disposed in the limiting groove, the elastic element is sleeved on the outside of the connecting post and disposed in the limiting groove, and the limiting groove is used to fix the elastic element.

6. The easily detachable rotary fan as described in claim 1, characterized in that, The easily detachable rotary fan also includes a locking member connected to the side of the fixed cover away from the fan blades. The locking member has a clearance hole corresponding to the locking hole, and the locking member also has a locking groove communicating with the clearance hole. The locking member includes an insertion part and a locking part connected at an angle to the insertion part. The insertion part is inserted into the clearance hole and the locking hole to achieve radial positioning of the fixed cover and the mounting part. The locking part is inserted into the locking groove and locked with the locking groove.

7. The easily detachable rotary fan as described in claim 6, characterized in that, The locking groove includes a guide area, a transition area, and a locking area that are interconnected. The locking part enters the locking groove from the guide area. When the easily detachable turntable fan is running, the locking part locks with the locking area under the action of centrifugal force.

8. The easily detachable rotary fan as described in claim 1, characterized in that, The turntable has a mounting platform located within the receiving cavity, the mounting platform being used to provide support for the fan blades, and the locking hole being formed in the mounting platform.

9. The easily detachable rotary fan as described in claim 1, characterized in that, The fixed cover and the turntable are provided with corresponding fixed holes, and the turntable fan that is easy to disassemble and assemble also includes a fixing component inserted into the fixed hole.

10. The easily detachable rotary fan as described in claim 9, characterized in that, The snap-fit ​​component also has a driving part, which extends out of the receiving gap after the snap-fit ​​part snaps into the slot.

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