Turntable fan with quick disassembly and assembly structure

Abstract

The utility model provides a turntable fan with a quick disassembly and assembly structure, which comprises a fixed seat, a limiting piece, fan blades, a locking cover and a locking bolt, and the fixed seat is provided with an accommodating cavity; the limiting piece comprises a connecting part and a limiting part, the connecting part is connected with the fixing base, the peripheral face of the limiting part protrudes out of the connecting part, and a containing gap is formed between the limiting part and the fixing base; the insertion ends of the fan blades are located in the containing gaps. The locking cover is provided with a locking hole and an adjusting hole corresponding to the limiting part, the limiting piece is arranged in the adjusting hole in a penetrating mode, and the locking cover edge has a locking state enabling the limiting piece and the adjusting hole to be connected in a clamped mode and further has an unlocking state enabling the limiting piece and the adjusting hole to be separated; the locking plug pin comprises a locking part connected to the fixing base and a telescopic part connected to the locking part, and the telescopic part is located in the containing cavity. The utility model provides a turntable fan with a quick mounting and dismounting structure, and aims to solve the problems of low stability and universality of a quick mounting structure of fan blades and a turntable in the prior art.

Description

Technical Field

[0001] This utility model belongs to the field of quick-installation structure technology, and more specifically, it relates to a rotary fan with a quick-installation and disassembly structure. Background Technology

[0002] For rotary fans, to facilitate transportation and storage, they are usually packaged separately from the fan blades, requiring users to assemble the blades and fan plate themselves after purchase. Existing connection methods between the fan blades and the fan plate include screw fixing, snap-fit, quick-release, magnetic, and pin-type connections.

[0003] Screw-fixed installation is the most common method, using screws to secure the fan blades to the turntable. It offers good stability, but requires tightening each screw individually, making the installation process somewhat cumbersome. Clip-on, quick-release, and pin-type installations are simpler, but their stability is poor, and long-term use can lead to wear or breakage of the clips and pins, affecting their lifespan. Magnetic installation is only suitable for lightweight fan blades, and the blades are prone to wobbling or falling off during use, resulting in lower safety. Utility Model Content

[0004] The purpose of this invention is to provide a rotary fan with a quick-assembly and disassembly structure, which aims to solve the problems of low stability and versatility of the quick-assembly structure of fan blades and rotary disc in the prior art.

[0005] To achieve the above objectives, the technical solution adopted by this utility model is as follows:

[0006] Firstly, a rotary fan with a quick-release structure is provided, comprising:

[0007] A fixed base has a receiving cavity opened along the axial direction, and a plurality of fixing grooves are opened at intervals on the outer peripheral surface of the fixed base. The fixing grooves are connected to the receiving cavity along the radial direction of the fixed base.

[0008] A limiting member is disposed within the receiving cavity. The limiting member includes a connecting part and a limiting part connected in sequence. The connecting part is connected to the fixed seat. The outer peripheral surface of the limiting part protrudes from the connecting part and forms a receiving gap with the fixed seat.

[0009] The fan blades are inserted into the fixing groove, with the insertion end of the fan blades located within the receiving gap;

[0010] A locking cover has a locking hole and an adjustment hole corresponding to the limiting part. The limiting member passes through the adjustment hole, and the limiting part and the fixing seat are respectively located on opposite sides of the locking cover. The locking cover has a locked state in which the limiting member engages with the adjustment hole, and an unlocked state in which the limiting member separates from the adjustment hole. The movement of the locking cover switches between the locked state and the unlocked state.

[0011] The locking pin includes a locking part connected to the fixed base and a telescopic part connected to the locking part. The telescopic part corresponds to the locking hole and is located in the receiving cavity. The telescopic part extends and retracts along the axial direction of the fixed base. When the locking cover is in the unlocked state, the locking pin abuts against the locking cover. When the locking cover is in the locked state, the locking pin is inserted into the locking hole and abuts against the inner wall of the locking hole.

[0012] In one possible implementation, the locking pin includes:

[0013] A locking cap is connected to the fixing base and has a locking groove, the locking cap forming the locking part;

[0014] An elastic element, disposed within the locking groove, extends and retracts axially along the fixed base; and

[0015] A locking pin has one end inserted into the locking groove and the other end extending out of the locking groove, forming the telescopic part.

[0016] In one possible implementation, the fixing seat has a guide hole and a first fixing hole, the telescopic part is inserted into the guide hole, the locking part is located outside the receiving cavity and abuts against the fixing seat, the locking part also has a second fixing hole adapted to the first fixing hole, and a fixing member is inserted into the first fixing hole and the second fixing hole.

[0017] In one possible implementation, the fixing base has a buckle, and the locking part has a locking hole adapted to the buckle, and the buckle engages with the locking hole.

[0018] In one possible implementation, the telescopic part has an outwardly protruding snap-fit ​​protrusion that, in the locked state, abuts against the locking cover along the axial direction of the fixing seat.

[0019] In one possible implementation, the fixed base has a positioning hole, the fan blade has a clearance hole adapted to the positioning hole, and the locking cover has a positioning post adapted to the positioning hole, the positioning post being inserted into the clearance hole and the positioning hole.

[0020] In one possible implementation, the adjustment hole includes a locking area and a releasing area that are interconnected. The diameter of the releasing area is larger than the diameter of the locking area. In the unlocked state, the connecting part is located in the releasing area, and the limiting part can pass through the releasing area. In the locked state, the connecting part is located in the locking area, and the limiting part is engaged with the locking area.

[0021] In one possible implementation, the fixing seat has a limiting hole, and the limiting member is inserted into the limiting hole.

[0022] In one possible implementation, the mounting base has a mounting boss located within the receiving cavity, the mounting boss being used to provide support for the fan blade, and the limiting member and the locking pin being connected to the mounting boss.

[0023] In one possible implementation, the fan blade has a receiving groove adapted to the connecting part, the receiving groove is connected to the outside along the insertion direction of the fan blade, the connecting part is inserted into the receiving groove, and the fan blade is limited in a path perpendicular to the insertion direction.

[0024] The advantages of this rotary fan with a quick-assembly and disassembly structure are as follows: Compared with the prior art, the coordinated operation of the fixing base, limiting component, fan blades, locking cover, and locking pin enables rapid installation and disassembly of the fan blades, greatly improving the efficiency of maintenance and replacement. The design of the fixing base allows the fan blades to be easily inserted through the fixing slot, while the limiting component, locking cover, and locking pin work together to ensure the stability of the fan blades after installation, preventing displacement or detachment during use. Through the cooperation of the adjustment hole and the locking hole, the locking cover can switch between a locked and unlocked state, thereby controlling the relative position of the limiting component and the locking cover, and realizing the fixing or release of the fan blades. This invention is not only easy to operate, improving the convenience and efficiency of assembly and disassembly, but also highly reliable, ensuring the safety of the fan during high-speed operation. It is applicable to fans of various specifications and has high versatility. Attached Figure Description

[0025] 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.

[0026] Figure 1 A schematic diagram of the locking cover of the rotary fan with a quick-release structure in the unlocked state, provided for an embodiment of this utility model;

[0027] Figure 2 A schematic diagram of the locking cover of the rotary fan with a quick-release structure in the locked state, provided for an embodiment of this utility model;

[0028] Figure 3 This is a schematic diagram of the structure of the fixing base used in the embodiment of this utility model;

[0029] Figure 4 This is another structural schematic diagram of the fixing base used in an embodiment of this utility model;

[0030] Figure 5 for Figure 4 Enlarged view of part A in the middle;

[0031] Figure 6 This is a schematic diagram of the locking cover used in an embodiment of the present utility model;

[0032] Figure 7 This is a schematic diagram of the locking pin used in an embodiment of the present utility model;

[0033] Figure 8 This is a cross-sectional view of the locking pin used in an embodiment of the present utility model;

[0034] Figure 9 This is a schematic diagram of the structure of the fixing base and fan blade used in the embodiment of this utility model.

[0035] In the diagram: 1. Fixed base; 101. Receiving cavity; 102. Mounting boss; 103. Limiting hole; 104. Fixing groove; 105. Positioning hole; 106. Buckle; 2. Fan blade; 201. Receiving groove; 202. Clearing hole; 3. Locking cover; 301. Adjustment hole; 3011. Release area; 3012. Locking area; 302. Locking hole; 303. Positioning post; 4. Limiting component; 401. Connecting part; 402. Limiting part; 5. Locking pin; 501. Telescopic part; 502. Locking cap; 5021. Snap hole; 5022. Locking groove; 503. Elastic component; 504. Locking pin. Detailed Implementation

[0036] 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.

[0037] 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."

[0038] Please refer to the following: Figures 1 to 9 The present invention describes a rotary fan with a quick-assembly and disassembly structure. The rotary fan with a quick-assembly and disassembly structure includes a fixed base 1, a limiting member 4, fan blades 2, a locking cover 3, and a locking pin 5. The fixed base 1 has an axially oriented receiving cavity 101, and its outer circumferential surface has multiple fixing grooves 104 spaced apart. The fixing grooves 104 are radially connected to the receiving cavity 101. The limiting member 4 is disposed within the receiving cavity 101 and includes a connecting part 401 and a limiting part 402 connected sequentially. The connecting part 401 is connected to the fixed base 1, and the outer circumferential surface of the limiting part 402 protrudes from the connecting part 401, forming a receiving gap with the fixed base 1. The fan blades 2 are inserted into the fixing grooves 104, with the insertion end of the fan blades 2 located within the receiving gap. The locking cover 3 has a locking hole 302 and an adjustment hole 301 corresponding to the limiting part 402. The locking cover 3 is inserted into the adjustment hole 301, and the limiting part 402 and the fixing seat 1 are respectively located on opposite sides of the locking cover 3. The locking cover 3 has a locked state in which the limiting part 4 is engaged with the adjustment hole 301, and an unlocked state in which the limiting part 4 is separated from the adjustment hole 301. The movement of the locking cover 3 realizes the switching between the locked state and the unlocked state. The locking pin 5 includes a locking part connected to the fixing seat 1 and a telescopic part 501 connected to the locking part. The telescopic part 501 corresponds to the locking hole 302 and is located in the receiving cavity 101. The telescopic part 501 extends and retracts along the axial direction of the fixing seat 1. When the locking cover 3 is in the unlocked state, the locking pin 5 abuts against the locking cover 3. When the locking cover 3 is in the locked state, the locking pin 5 is inserted into the locking hole 302 and abuts against the inner wall of the locking hole 302.

[0039] This utility model provides a rotary fan with a quick-release structure. Compared with existing technologies, it achieves rapid installation and removal of the fan blade 2 through the coordinated work of the fixing base 1, limiting member 4, fan blade 2, locking cover 3, and locking pin 5, greatly improving the efficiency of maintaining and replacing the fan blade 2. The design of the fixing base 1 allows the fan blade 2 to be easily inserted through the fixing slot 104, while the limiting member 4, locking cover 3, and locking pin 5 work together to ensure the stability of the fan blade 2 after installation, preventing displacement or detachment during use. The cooperation of the adjusting hole 301 and the locking hole 302 allows the locking cover 3 to switch between a locked and unlocked state, thereby controlling the relative position of the limiting member 4 and the locking cover 3, and realizing the fixing or releasing of the fan blade 2. This utility model is not only easy to operate, improving the convenience and efficiency of disassembly and assembly, but also highly reliable, ensuring the safety of the fan when operating at high speed. It is applicable to fans of various specifications and has high versatility.

[0040] Work process:

[0041] The fan blade 2 passes through the fixing groove 104 and enters the receiving cavity 101, and then enters the receiving gap between the limiting part 402 and the fixing seat 1. The limiting part 4 positions the fan blade 2, completing the pre-installation of the fan blade 2. The adjusting hole 301 of the locking cover 3 corresponds to the limiting part 4. In the unlocked state, the limiting part 402 passes through the adjusting hole 301, and the connecting part 401 is inserted into the adjusting hole 301. At this time, the locking cover 3 applies pressure to the locking pin 5, and the telescopic part 501 retracts. Then, the locking cover 3 is moved to switch the locking cover 3 to the locked state. At this time, the locking hole 302 corresponds to the locking pin 5, and the telescopic part 501 of the locking pin 5 passes through the locking hole 302 and abuts against the inner wall of the locking hole 302, limiting the movement of the locking cover 3 and fixing the locking cover 3 in the locked state. When it is necessary to disassemble the fan blade 2, apply force to the telescopic part 501 to retract the telescopic part 501 and move the locking cover 3 at the same time to switch the locking cover 3 to the unlocked state.

[0042] In some embodiments, please refer to Figures 7 to 8 The locking pin 5 includes a locking cap 502, an elastic element 503, and a locking pin 504. The locking cap 502 is connected to the fixed base 1 and has a locking groove 5022, forming a locking part. The elastic element 503 is disposed in the locking groove 5022 and extends and retracts along the axial direction of the fixed base 1. One end of the locking pin 504 is inserted into the locking groove 5022, and the other end extends out of the locking groove 5022, forming a telescopic part 501.

[0043] The elastic element 503 is located within the locking groove 5022 and abuts against both the locking cap 502 and the locking pin 504. When the locking pin 504 is under pressure, the elastic element 503 is compressed, and the locking pin 504 moves towards the locking cap 502 within the locking groove 5022, thus shortening the locking pin 504. Conversely, when the locking pin 504 is no longer under pressure, the elastic element 503 returns to its original position, and the locking pin 504 extends. In this embodiment, the locking pin 504 can quickly extend or retract when needed, improving operational convenience. Furthermore, the elastic element 503 not only enhances the automatic reset capability of the locking pin 504 but also provides a certain buffering effect during locking, reducing impact and extending the service life of the device.

[0044] Optionally, the locking cap 502 can be snapped, screwed, or glued to the fixing seat 1.

[0045] Optionally, the elastic element 503 is a spring.

[0046] In some embodiments, please refer to Figures 4 to 5 The fixed base 1 has a guide hole and a first fixed hole. The telescopic part 501 is inserted into the guide hole. The locking part is located outside the receiving cavity 101 and abuts against the fixed base 1. The locking part also has a second fixed hole adapted to the first fixed hole. A fixing member is inserted into the first fixed hole and the second fixed hole.

[0047] The fastener is inserted into the first and second fixing holes to fix the locking part to the fixing base 1. The fastener can be a screw-on or snap-on component, which is easy to operate and realizes a detachable connection between the locking part and the fixing base 1. The telescopic part 501 is inserted into the guide hole and extends into the receiving cavity 101. The locking part abuts against the fixing base 1, thereby ensuring the stability of the telescopic part 501 in the telescopic direction. The guide hole limits the telescopic part 501 in a direction perpendicular to the telescopic direction, ensuring the stability and reliability of the telescopic part 501 during the telescopic process.

[0048] In some embodiments, please refer to Figures 4 to 5 The fixing base 1 has a buckle 106, and the locking part has a locking hole 5021 adapted to the buckle 106, and the buckle 106 and the locking hole 5021 are engaged.

[0049] The buckle 106 is inserted into the buckle hole 5021 to achieve a snap-fit ​​engagement with the buckle hole 5021, thereby detachably connecting the locking part to the fixing base 1. Compared with the bonding or one-piece molding connection method, this embodiment is not affected by temperature and humidity, the connection is firm and reliable, and no special production mold is required, which reduces production costs.

[0050] In some embodiments, not shown in the figures, the telescopic part 501 has an outwardly protruding snap-fit ​​protrusion, which abuts against the locking cover 3 along the axial direction of the fixing seat 1 in the locked state.

[0051] When the locking cover 3 is in the locked state, the side wall of the telescopic part 501 abuts against the inner wall of the adjusting hole 301 formed by the locking cover 3, and the snap-fit ​​protrusion abuts against the locking cover 3 along the axial direction of the fixing seat 1, thereby achieving snap-fit ​​fixation of the locking cover 3. This embodiment improves the reliability and stability of the locking cover 3 in the locked state and avoids the locking cover 3 from loosening due to the rotation of the fan blade 2.

[0052] In some embodiments, please refer to Figure 3 and Figure 6 The fixed base 1 has a positioning hole 105, the fan blade 2 has a relief hole 202 adapted to the positioning hole 105, and the locking cover 3 has a positioning post 303 adapted to the positioning hole 105. The positioning post 303 is inserted into the relief hole 202 and the positioning hole 105.

[0053] When installing the locking cover, the positioning pin 303 is inserted into the positioning hole 105, eliminating the need to align and position the locking cover, thus improving installation efficiency. At the same time, the insertion of the positioning pin 303 into the positioning hole 105 further increases the connection reliability of the locking cover 3.

[0054] It should be noted that there is an adjustment margin between the positioning hole 105 and the positioning post 303 to avoid affecting the switching of the locking cover 3 between the locked and unlocked states.

[0055] In some embodiments, please refer to Figure 6 The adjustment hole 301 includes a locking area 3012 and a releasing area 3011 that are interconnected. The diameter of the releasing area 3011 is larger than the diameter of the locking area 3012. In the unlocked state, the connecting part 401 is located in the releasing area 3011, and the limiting part 402 can pass through the releasing area 3011. In the locked state, the connecting part 401 is located in the locking area 3012, and the limiting part 402 is engaged with the locking area 3012.

[0056] By dividing the adjustment hole 301 into an interconnected locking area 3012 and a release area 3011, and making the diameter of the release area 3011 larger than that of the locking area 3012, the device can flexibly switch between different states. In the unlocked state, the connecting part 401 is located within the release area 3011, and the limiting part 402 can freely pass through the release area 3011, allowing the device to quickly and smoothly release the locking state, improving the convenience of operation. In the locked state, the connecting part 401 is located within the locking area 3012, and the limiting part 402 is engaged with the locking area 3012, forming a stable locking effect, ensuring the reliability and safety of the device. This design not only simplifies the operation steps but also enhances the applicability and durability of the device, making it suitable for scenarios requiring frequent adjustment and locking, and improving the overall user experience.

[0057] Specifically, when installing the locking cover 3, the limiting part 402 of the limiting member 4 passes through the release area 3011, and the connecting part 401 is inserted into the release area 3011. Then, when the locking cover 3 is moved, the connecting part 401 is inserted into the locking area 3012. Since the diameter of the hole in the locking area 3012 is smaller than that of the limiting part 402, the limiting part 402 is engaged with the locking cover 3, switching the locking cover 3 to the locked state.

[0058] In some embodiments, please refer to Figure 3 The fixed base 1 has a limiting hole 103, and the limiting member 4 is inserted into the limiting hole 103.

[0059] The connection between the limiting component 4 and the fixed base 1 is achieved by using a plug-in mating method. This not only eliminates the need to position the limiting component 4 during installation, thus improving installation efficiency, but also increases the stability of the connection between the limiting component 4 and the fixed base 1 by limiting the limiting component 4 downhole through the limiting hole 103.

[0060] Optionally, the limiting member 4 is screwed or snapped into the limiting hole 103.

[0061] Optionally, the limiting hole 103 is a threaded hole, and the connecting part 401 of the limiting member 4 has a threaded area that is screwed into the threaded hole.

[0062] In some embodiments, please refer to Figures 1 to 3 The mounting base 1 has a mounting boss 102 located in the receiving cavity 101. The mounting boss 102 is used to provide support for the fan blade 2. The limiting member 4 and the locking pin 5 are both connected to the mounting boss 102.

[0063] The mounting boss 102 within the mounting base 1 provides stable support for the fan blade 2, ensuring its stability and balance during operation, thereby effectively reducing vibration and noise and improving overall performance. Simultaneously, the limiting component 4 and locking pin 5 are both connected to the mounting boss 102. This integrated design not only simplifies the structure but also enhances the compactness and reliability of the device. As the core support point, the mounting boss 102 enables the limiting component 4 and locking pin 5 to work together, achieving precise positioning and secure locking of the fan blade 2, further improving the device's durability and ease of operation. Furthermore, this solution facilitates installation and maintenance, is suitable for various scenarios requiring stable support and quick locking, and possesses high practicality and economic efficiency.

[0064] In some embodiments, please refer to Figure 9 The fan blade 2 has a receiving groove 201 adapted to the connecting part 401. The receiving groove 201 is connected to the outside along the insertion direction of the fan blade 2. The connecting part 401 is inserted into the receiving groove 201 and limits the fan blade 2 in a path perpendicular to the insertion direction.

[0065] The receiving slot 201 is adapted to the connecting part 401, allowing the connecting part 401 to be precisely inserted, thereby achieving a stable connection between the fan blade 2 and the fixed base 1. The receiving slot 201 extends externally along the insertion direction of the fan blade 2. This design simplifies the installation process, allowing the fan blade 2 to be quickly and easily inserted or removed, improving operational efficiency. Simultaneously, the connecting part 401 limits the fan blade 2 along a path perpendicular to the insertion direction, effectively preventing the fan blade 2 from shifting or loosening during use, ensuring operational stability and safety. This limiting mechanism not only enhances the positioning accuracy of the fan blade 2 but also reduces wear caused by vibration or external forces, extending the service life of the device. Overall, this design is simple in structure, easy to install, and highly stable, suitable for scenarios requiring frequent disassembly and maintenance, improving the overall user experience.

[0066] 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 with a quick-assembly and disassembly structure, characterized in that, include: A fixed base has a receiving cavity opened along the axial direction, and a plurality of fixing grooves are opened at intervals on the outer peripheral surface of the fixed base. The fixing grooves are connected to the receiving cavity along the radial direction of the fixed base. A limiting member is disposed within the receiving cavity. The limiting member includes a connecting part and a limiting part connected in sequence. The connecting part is connected to the fixed seat. The outer peripheral surface of the limiting part protrudes from the connecting part and forms a receiving gap with the fixed seat. The fan blades are inserted into the fixing slots, with the insertion end of the fan blades located within the receiving gaps. The locking cover has a locking hole and an adjustment hole corresponding to the limiting part. The limiting member passes through the adjustment hole, and the limiting part and the fixing seat are respectively located on opposite sides of the locking cover. The locking cover has a locking state in which the limiting member is engaged with the adjustment hole, and an unlocking state in which the limiting member is separated from the adjustment hole. The movement of the locking cover realizes switching between the locking state and the unlocking state. as well as The locking pin includes a locking part connected to the fixed base and a telescopic part connected to the locking part. The telescopic part corresponds to the locking hole and is located in the receiving cavity. The telescopic part extends and retracts along the axial direction of the fixed base. When the locking cover is in the unlocked state, the locking pin abuts against the locking cover. When the locking cover is in the locked state, the locking pin is inserted into the locking hole and abuts against the inner wall of the locking hole.

2. The rotary fan with a quick-assembly and disassembly structure as described in claim 1, characterized in that, The locking pin includes: A locking cap is connected to the fixing base and has a locking groove, the locking cap forming the locking part; An elastic element, disposed within the locking groove, extends and retracts axially along the fixed base; and A locking pin has one end inserted into the locking groove and the other end extending out of the locking groove, forming the telescopic part.

3. The rotary fan with a quick-assembly and disassembly structure as described in claim 1, characterized in that, The fixed base has a guide hole and a first fixed hole. The telescopic part is inserted into the guide hole. The locking part is located outside the receiving cavity and abuts against the fixed base. The locking part also has a second fixed hole adapted to the first fixed hole. Fixing members are inserted into the first fixed hole and the second fixed hole.

4. The rotary fan with a quick-assembly and disassembly structure as described in claim 1, characterized in that, The fixing base has a buckle, and the locking part has a locking hole adapted to the buckle, and the buckle engages with the locking hole.

5. The rotary fan with a quick-assembly and disassembly structure as described in claim 1, characterized in that, The telescopic part has an outwardly protruding snap-fit ​​protrusion, which abuts against the locking cover along the axial direction of the fixed seat in the locked state.

6. The rotary fan with a quick-assembly and disassembly structure as described in claim 1, characterized in that, The fixed base has a positioning hole, the fan blade has a clearance hole adapted to the positioning hole, and the locking cover has a positioning post adapted to the positioning hole. The positioning post is inserted into the clearance hole and the positioning hole.

7. The rotary fan with a quick-assembly and disassembly structure as described in claim 1, characterized in that, The adjustment hole includes a locking area and a releasing area that are interconnected. The diameter of the releasing area is larger than the diameter of the locking area. In the unlocked state, the connecting part is located in the releasing area, and the limiting part can pass through the releasing area. In the locked state, the connecting part is located in the locking area, and the limiting part is engaged with the locking area.

8. The rotary fan with a quick-assembly and disassembly structure as described in claim 1, characterized in that, The fixed base has a limiting hole, and the limiting member is inserted into the limiting hole.

9. The rotary fan with a quick-assembly and disassembly structure as described in claim 1, characterized in that, The mounting base has a mounting boss located within the receiving cavity, the mounting boss being used to provide support for the fan blade, and the limiting member and the locking pin being connected to the mounting boss.

10. The rotary fan with a quick-assembly and disassembly structure as described in claim 1, characterized in that, The fan blade has a receiving groove adapted to the connecting part. The receiving groove is connected to the outside along the insertion direction of the fan blade. The connecting part is inserted into the receiving groove and limits the fan blade in a path perpendicular to the insertion direction.

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