A fan fixing structure capable of quick assembly and disassembly

Abstract

The application discloses a fan fixing structure capable of being quickly assembled and disassembled, which comprises a support and a fan body, the support is provided with a mounting groove, the mounting groove is provided with an adapter plate, a connector arranged at the lower end of the fan body is in connection with the adapter plate, the support is provided with a fixed buckle on one side of the mounting groove, the support is provided with a movable buckle on the other side of the mounting groove, a guide limiting block is arranged outside the mounting groove, an installation space is formed among the guide limiting block, the movable buckle and the fixed buckle, and a spring is arranged between the movable buckle and the support; the lower end of the fan body is circular, and a ring-shaped clamping groove is arranged around the lower end of the fan body; a plurality of ring-shaped conductive sheets with the same center and distributed at intervals are arranged on the adapter plate; the lower end of the fan body is arranged in the installation space at any angle, the guide limiting block is in contact with the outer surface of the lower end of the fan body, so as to limit the lower end of the fan body, and the fixed buckle and the movable buckle are buckled into the ring-shaped clamping groove, so as to limit the lower end of the fan body in the installation space.

Description

Technical Field

[0001] This invention relates to the field of fan product technology, and specifically to a fan fixing structure that enables quick assembly and disassembly. Background Technology

[0002] With the continuous development of the electronics and information industry, the operating frequency of electronic components is constantly increasing, which in turn increases the heat generated by the electronic components and raises the temperature, seriously threatening the performance of the electronic components. In order to ensure the normal operation of electronic components, cooling fans are usually used to assist in the heat dissipation of electronic components.

[0003] The inventor previously filed a Chinese utility model patent with patent number ZL202223037810.3, which discloses a fan mounting structure that can be assembled and disassembled by hand. This fan mounting structure includes: a fan, comprising a base, a PCB board mounted on the base, and fan blades mounted on the base via a motor assembly, wherein the motor assembly is electrically connected to the PCB board, and a first connector on the PCB board is exposed on the lower end face of the base; a mounting base, on which a second connector adapted to the first connector is provided, and a power cord electrically connected to the second connector extends outside the mounting base; a mounting socket is provided at one end of the mounting base, and a mounting pin adapted to the mounting socket is provided at one end of the base; the other end of the base and the other end of the mounting base are detachably assembled via an elastic locking structure. The user can directly push the fan to unlock the elastic locking structure, and simultaneously pull the fan outward to detach it from the mounting base, achieving manual disassembly, which is extremely convenient.

[0004] In the aforementioned fan fixing structure, one end of the fan base is inserted into the fixing socket of the fixing seat via a fixing pin; and the other end of the base and the other end of the fixing seat are detachably assembled via an elastic locking structure. Although this fan fixing structure can be disassembled by hand and is easy to operate, the inventors discovered a technical problem after manufacturing and using it: it can only be assembled in one direction, which restricts installation and makes it inconvenient to install.

[0005] In view of this, the inventor has made further improvements to propose the following technical solution. Summary of the Invention

[0006] The purpose of this invention is to overcome the shortcomings of the prior art and provide a fan fixing structure that enables quick assembly and disassembly.

[0007] To solve the above-mentioned technical problems, the present invention adopts the following technical solution: A fan fixing structure that enables quick assembly and disassembly includes a bracket and a fan body detachably mounted on the bracket. The bracket has a mounting groove, in which an adapter plate is disposed. A wire connected to the adapter plate extends outside the bracket. A connector at the lower end of the fan body is connected to the adapter plate. The bracket has a fixing buckle on one side of the mounting groove and a movable buckle on the other side of the mounting groove. The movable buckle and the fixing buckle are distributed facing each other. Furthermore, a guide is provided on the outer side of the mounting groove. The guide limiting block, movable buckle, and fixed buckle form an installation space. A spring is provided between the movable buckle and the bracket. The lower end of the fan body is circular, and an annular groove is provided around the lower end of the fan body. Several annular conductive sheets with the same center and spaced apart are provided on the adapter plate. The lower end of the fan body can be installed into the installation space at any angle. The guide limiting block contacts the outer surface of the lower end of the fan body to limit the lower end of the fan body. The fixed buckle and movable buckle are both engaged in the annular groove to confine the lower end of the fan body within the installation space.

[0008] Furthermore, in the above technical solution, when the lower end of the fan body is installed into the installation space, it is first guided into the installation space by a guide limiting block, and the guide limiting block limits the periphery of the lower end of the fan body. The lower end of the fan body presses on the movable buckle and pushes the movable buckle to move backward until the lower end of the fan body is completely installed into the installation space. The movable buckle is reset under the elastic force of the spring and is embedded in the annular groove to limit the lower end of the fan body in the installation space. At the same time, the fixed buckle is engaged in the annular groove to lock the lower end of the fan body onto the bracket.

[0009] Furthermore, in the above technical solution, the movable buckle is provided with a first through hole, and the locking screw passes through the first through hole and is screwed to the bracket to lock the movable buckle on the bracket.

[0010] Furthermore, in the above technical solution, the bracket is provided with a movable groove, and a first sliding part protruding downward is formed on one side of the movable buckle. The first sliding part is placed in the movable groove and can move in the movable groove. The spring is also embedded in the movable groove, with one end of the spring contacting the inner wall of the movable groove and the other end of the spring contacting the rear end of the first sliding part. A cover plate is also provided at the upper end of the movable groove, and the cover plate is placed above the first sliding part and the spring.

[0011] Furthermore, in the above technical solution, guide rails are formed on both sides of the movable groove, and a rail groove adapted to the guide rail is also provided on the outer side of the first sliding part, and the guide rail is embedded in the rail groove; the bracket is also provided with a sliding groove on the side of the movable groove, and a second sliding part is provided at the lower end of the movable buckle, the second sliding part is placed in the sliding groove and can slide in the sliding groove, and the second sliding part and the first sliding part are distributed in a Z-shape or reverse Z-shape.

[0012] Furthermore, in the above technical solution, a circular groove is provided at the rear end of the first sliding part, and a cylinder is provided in the circular groove; the end of the spring is embedded in the circular groove and fixedly sleeved on the cylinder.

[0013] Furthermore, in the above technical solution, the upper end of the movable buckle is provided with a first inclined surface; the upper end of the guide limiting block is provided with a guide inclined surface; the lower periphery of the fan body is provided with a chamfer; the connector is a spring pin connector, which has spring pins that are adapted to the circular conductive sheet one by one, and the end of the spring pin protrudes out of the lower end surface of the fan body.

[0014] Furthermore, in the above technical solution, the fan body includes a base, a motor assembly and a PCB board mounted on the base, and fan blades rotatably mounted on the motor assembly via a rotating shaft. The base is provided with a first window penetrating its lower end face. The connector is mounted on the lower end of the PCB board, and the lower end of the connector extends out of the lower end face of the base through the first window. The annular slot is provided on the lower periphery of the base.

[0015] Furthermore, in the above technical solution, a cylinder is provided on the base, and an opening penetrating the inner cavity of the cylinder is provided at the lower end of the base. A first stepped groove and a second stepped groove are respectively provided at the upper and lower ends of the inner cavity of the cylinder. A first bearing is embedded in the first stepped groove, and a second bearing is embedded in the second stepped groove. The rotating shaft is fixedly connected to the first and second bearings, and a first retaining spring is fixedly fastened at the lower end of the rotating shaft. The first retaining spring abuts against the lower end of the inner circle of the second bearing to confine the second bearing in the second stepped groove. A tower-shaped spring with a larger upper end and a smaller lower end is also sleeved on the upper end of the rotating shaft. The lower end of the tower-shaped spring abuts against the upper end of the inner circle of the first bearing, and the upper end of the spring abuts against the inner wall of the hub in the fan blade.

[0016] Furthermore, in the above technical solution, a housing is installed on the bracket, the housing has a convex ring formed in the middle and a connecting post located outside the convex ring, a second window is formed in the convex ring, and the fan body is exposed in the second window; the connecting post has a threaded groove, and the lower end of the convex ring is also provided with a limiting groove; the bracket is partially embedded in the limiting groove for positioning, the bracket is provided with a positioning groove and a countersunk hole that passes through the positioning groove, the end of the connecting post is embedded in the positioning groove, and a second screw passes through the countersunk hole and is screwed into the threaded groove, so that the housing is fixed on the bracket.

[0017] After adopting the above technical solution, the present invention has the following beneficial effects compared with the prior art: When assembling the fan body and the bracket, when the lower end of the fan body is installed into the installation space, the guide limiting block first guides the lower end of the fan body into the installation space. This guide limiting block has a good guiding effect, enabling the lower end of the fan body to be smoothly installed into the installation space. Furthermore, the guide limiting block limits the outer periphery of the lower end of the fan body, preventing it from moving horizontally. Simultaneously, the lower end of the fan body presses against the movable buckle and pushes the movable buckle backward until the lower end of the fan body is completely installed into the installation space. During this process, the movable latch resets under the elastic force of the spring and embeds itself into the annular groove to confine the lower end of the fan body within the installation space. Simultaneously, the fixed latch engages with the annular groove to lock the lower end of the fan body onto the bracket, thereby locking the fan body onto the bracket. The assembly structure is extremely simple, and installation is very easy and convenient, improving assembly efficiency. Furthermore, the fan body in this invention does not require a specific installation direction and can be installed into the installation space on the bracket at any angle, making installation even more convenient and further improving assembly efficiency and operation. Attached Figure Description

[0018] Figure 1 This is a perspective view of the present invention;

[0019] Figure 2 This is a perspective view of the invention from another angle;

[0020] Figure 3 This is a cross-sectional view of the present invention;

[0021] Figure 4 This is a perspective view of the invention from a third perspective;

[0022] Figure 5 This is a perspective view of the fan body in this invention;

[0023] Figure 6 This is an assembly diagram of the bracket in this invention;

[0024] Figure 7 This is an exploded assembly diagram of the bracket in this invention;

[0025] Figure 8 This is a perspective view of the movable buckle in this invention;

[0026] Figure 9 This is an assembly diagram of the invention with its casing and heat sink;

[0027] Figure 10 It is a 3D view of the outer shell. Detailed Implementation

[0028] The present invention will be further described below with reference to specific embodiments and accompanying drawings.

[0029] See Figure 1-10 As shown, a fan mounting structure that allows for quick assembly and disassembly includes a bracket 1 and a fan body 2 detachably mounted on the bracket 1. The fan body 2 generates airflow when powered on. The bracket 1 is mounted on a heat sink 8 to work with the heat sink 8 to dissipate heat from electronic components or products. The bracket 1 and the fan body 2 are two independent entities that can be disassembled and installed relative to each other. The bracket 1 has a mounting slot 103 containing an adapter plate 4. A wire 6 connected to the adapter plate 4 extends outside the bracket 1. A connector 5 at the lower end of the fan body 2 connects to the adapter plate 4, thereby connecting the fan body 2 to the wire 6.

[0030] The specific assembly structure of the bracket 1 and the fan body 2 is as follows:

[0031] The bracket 1 has a fixed buckle 11 on one side of the mounting groove 103 and a movable buckle 12 on the other side of the mounting groove 103. The movable buckle 12 and the fixed buckle 11 are distributed facing each other. A guide limiting block 13 is also provided on the outside of the mounting groove 103. The guide limiting block 13, the movable buckle 12 and the fixed buckle 11 form an installation space. A spring 14 is provided between the movable buckle 12 and the bracket 1. The lower end of the fan body 2 is circular, and an annular groove 201 is provided on the periphery of the lower end of the fan body 2. Several annular conductive sheets 41 with the same center and spaced apart are provided on the adapter plate 4. The lower end of the fan body 2 is inserted into the installation space at any angle. The guide limiting block 13 contacts the outer surface of the lower end of the fan body 2 to limit the lower end of the fan body 2. The fixed buckle 11 and the movable buckle 12 are both fastened into the annular groove 201 to limit the lower end of the fan body 2 in the installation space. In other words, when assembling the fan body 2 with the bracket 1, when the lower end of the fan body 2 is inserted into the installation space, the guide limiting block 13 first guides the fan body 2 into the installation space. This guide block 13 provides good guidance, allowing the lower end of the fan body 2 to be smoothly inserted into the installation space. Furthermore, the guide limiting block 13 limits the outer periphery of the lower end of the fan body 2, preventing horizontal movement. Simultaneously, the lower end of the fan body 2 presses against the movable latch 12 and pushes the movable latch 12 backward until the lower end of the fan body 2 is fully inserted into the installation space. The movable latch 12 is then held in place by the spring 14. Under the elastic force, the fan body 2 resets and the movable buckle 12 is embedded in the annular groove 201 to confine the lower end of the fan body 2 within the installation space. Simultaneously, the fixed buckle 11 engages with the annular groove 201 to lock the lower end of the fan body 2 onto the bracket 1, thus locking the fan body 2 onto the bracket 1. The assembly structure is extremely simple, and installation is very easy and convenient, improving assembly efficiency. Furthermore, the fan body 2 in this invention does not require a specific installation direction and can be installed into the installation space on the bracket 1 at any angle, making installation more convenient and further improving assembly efficiency and operation. When it is necessary to disassemble the fan body 2 relative to the bracket 1, push the movable buckle 12 outwards to disengage it from the annular groove 201. Then, tilt the fan body 2 upwards towards the side closest to the movable buckle 12, causing the annular groove 201 to disengage from the movable buckle 12. Simultaneously, the fixed buckle 11 disengages from the annular groove 201, achieving complete unlocking. At this point, the fan body 2 can be detached from the bracket 1.

[0032] The movable buckle 12 is provided with a first through hole 121. The locking screw 122 passes through the first through hole 121 and is screwed onto the bracket 1 to lock the movable buckle 12 onto the bracket 1. After the movable buckle 12 is embedded in the annular groove 201, the locking screw 122 is passed through the first through hole 121 and screwed onto the bracket 1 to make the movable buckle 12 immovable. The movable buckle 12 is firmly locked in the annular groove 201, which can effectively prevent the movable buckle 12 from falling out of the annular groove 201 due to vibration or other external factors, ensuring the stability of the assembly structure and improving product quality.

[0033] The following is a detailed description of the assembly structure of the movable buckle 12 and the bracket 1.

[0034] The bracket 1 is provided with a movable groove 15. A first sliding part 123 protruding downward is formed on one side of the movable buckle 12. The first sliding part 123 is placed in the movable groove 15 and can move in the movable groove 15. The spring 14 is also embedded in the movable groove 15. One end of the spring 14 contacts the inner wall of the movable groove 15, and the other end of the spring 14 contacts the rear end of the first sliding part 123 to generate elasticity for the movable buckle 12. A cover plate 16 is also provided at the upper end of the movable groove 15. The cover plate 16 is placed above the first sliding part 123 and the spring 14, which can effectively prevent the first sliding part 123 and the spring 14 from falling out of the movable groove 15 and improve the quality of the product.

[0035] The movable groove 15 has guide rails 151 formed on both sides. The outer side of the first sliding part 123 is also provided with a rail groove 124 adapted to the guide rails 151. The guide rails 151 are embedded in the rail grooves 124, thereby ensuring that the first sliding part 123 can slide stably in the movable groove 15 and slide extremely smoothly. It can also play a role in preventing disengagement, that is, preventing the first sliding part 123 from accidentally disengaging from the movable groove 15, and further ensuring the stability of the assembly structure.

[0036] In addition, the bracket 1 is provided with a sliding groove 104 on the side of the movable groove 15, and the lower end of the movable buckle 12 is provided with a second sliding part 125. The second sliding part 125 is placed in the sliding groove 104 and can slide in the sliding groove 104, which can further ensure the stability and smoothness of the sliding of the entire movable buckle 12. The second sliding part 125 and the first sliding part 123 are distributed in a Z-shape or reverse Z-shape.

[0037] The assembly structure between the spring 14 and the first sliding part 123 is as follows: a circular groove 126 is provided at the rear end of the first sliding part 123, and a cylinder 127 is provided in the circular groove 126; the end of the spring 14 is embedded in the circular groove 126 and fixedly sleeved on the cylinder 127, thereby ensuring that the spring 14 and the first sliding part 123 form a stable connection, preventing the spring 14 from accidentally disengaging from the first sliding part 123, and at the same time enabling the spring 14 to provide stable elasticity to the movable buckle 12.

[0038] The lower periphery of the fan body 2 is provided with a chamfer 20, which serves as a guide, allowing the lower end of the fan body 2 to enter the installation space more smoothly for complete assembly and providing low-power assembly. Furthermore, the upper end of the movable latch 12 is provided with a first inclined surface 120. When the lower end of the fan body 2 is engaged with the first inclined surface 120, it can push the movable latch 12 backward, allowing the lower end of the fan body 2 to enter the installation space more smoothly. The upper end of the guide limiting block 13 is provided with a guide inclined surface 130, which provides good guidance. Simultaneously, the chamfer 20 on the lower periphery of the fan body 2, after contacting the guide inclined surface 130, provides an even more ideal guiding effect, resulting in higher installation efficiency.

[0039] The connector 5 is a spring pin connector, which has spring pins 51 that are adapted to each other in a one-to-one correspondence with the circular conductive sheet 41. The end of the spring pin 51 protrudes out of the lower end face of the fan body 2. The spring pin 51 can form a stable conductive connection with the circular conductive sheet 41 and ensure the quality of the conductive connection, so that there will be no accidental disconnection and power failure.

[0040] The fan body 2 includes a base 21, a motor assembly 22 and a PCB board 23 mounted on the base 21, and a fan blade 24 rotatably mounted on the motor assembly 22 via a rotating shaft 241. The base 21 is provided with a first window 211 that penetrates its lower end face. The connector 5 is installed at the lower end of the PCB board 23, and the lower end of the connector 5 extends out of the lower end face of the base 21 through the first window 211. The annular slot 201 is provided on the lower periphery of the base 21.

[0041] The base 21 is provided with a cylinder 212. The lower end of the base 21 is provided with an opening 213 that penetrates the inner cavity of the cylinder 212. The upper and lower ends of the inner cavity of the cylinder 212 are respectively provided with a first stepped groove 204 and a second stepped groove 205. A first bearing 214 is embedded in the first stepped groove 204 and a second bearing 215 is embedded in the second stepped groove 205. The rotating shaft 241 is fixed to the first bearing 214 and the second bearing 215. The use of double bearings to assemble with the rotating shaft 241 can ensure the stability of the assembly structure of the rotating shaft 241, and can also ensure that the rotating shaft 241 rotates more smoothly, which can reduce energy consumption to a certain extent. Furthermore, a first retaining spring 242 is fixedly engaged at the lower end of the rotating shaft 241. The first retaining spring 242 abuts against the lower end of the inner circle of the second bearing 215 to confine the second bearing 215 in the second stepped groove 205. Its assembly structure is simple and stable. A tower-shaped spring 243 with a larger upper end and a smaller lower end is also sleeved on the upper end of the rotating shaft 241. The lower end of the tower-shaped spring 243 abuts against the upper end of the inner circle of the first bearing 214, and the upper end of the spring 243 abuts against the inner wall of the hub 244 in the fan blade 24. Its assembly structure is simple and stable.

[0042] The bracket 1 is equipped with a housing 3, wherein the housing 3 has a second window 31, the fan blade 24 is placed in the second window 31, and the housing 3 has the function of protecting the fan blade 24.

[0043] The outer casing 3 has a convex ring 32 formed in the middle and a connecting post 33 located outside the convex ring 32. The second window 31 is formed inside the convex ring 32, and the fan body 2 is exposed in the second window 31. The connecting post 33 has a threaded groove 331, and the lower end of the convex ring 32 is also provided with a limiting groove 321. The bracket 1 is partially embedded in the limiting groove 321 for positioning. The bracket 1 is provided with a positioning groove 101 and a countersunk hole 102 that passes through the positioning groove 101. The end of the connecting post 33 is embedded in the positioning groove 101, and the second screw 34 passes through the countersunk hole 102 and is screwed into the threaded groove 331, so that the outer casing 3 is fixed on the bracket 1.

[0044] In summary, when assembling the fan body 2 with the bracket 1, the lower end of the fan body 2 is first inserted into the installation space by the guide limiting block 13, which has a good guiding effect, allowing the lower end of the fan body 2 to be smoothly inserted into the installation space. The guide limiting block 13 also limits the lower end of the fan body 2, preventing it from moving horizontally. Simultaneously, the lower end of the fan body 2 presses against the movable latch 12 and pushes the movable latch 12 backward until the lower end of the fan body 2 is completely inserted into the installation space. The movable latch 12 is held in place by the spring 14. Under the elastic force, the fan body 2 resets and the movable buckle 12 is embedded in the annular groove 201 to limit the lower end of the fan body 2 in the installation space; at the same time, the fixed buckle 11 is fastened into the annular groove 201 to lock the lower end of the fan body 2 onto the bracket 1, thereby locking the fan body 2 onto the bracket 1. Its assembly structure is extremely simple and easy to install, which can improve assembly efficiency. In addition, the fan body 2 in this invention does not need to be installed in a specific direction and can be installed into the installation space on the bracket 1 at any angle, making installation more convenient and further improving assembly efficiency and operation.

[0045] Of course, the above description is only a specific embodiment of the present invention and is not intended to limit the scope of the present invention. All equivalent changes or modifications made to the structure, features and principles described in the claims of the present invention should be included in the scope of the claims of the present invention.

Claims

1. A fan mounting structure capable of quick assembly and disassembly, comprising a bracket (1) and a fan body (2) detachably mounted on the bracket (1), wherein the bracket (1) is provided with a mounting groove (103), an adapter plate (4) is provided in the mounting groove (103), a wire (6) connected to the adapter plate (4) extends out of the bracket (1), and a connector (5) provided at the lower end of the fan body (2) is connected to the adapter plate (4), characterized in that: The bracket (1) has a fixed buckle (11) on one side of the mounting groove (103), and a movable buckle (12) on the other side of the mounting groove (103). The movable buckle (12) and the fixed buckle (11) are distributed facing each other. A guide limiting block (13) is also provided on the outside of the mounting groove (103). The guide limiting block (13), the movable buckle (12) and the fixed buckle (11) form an installation space. A spring (14) is provided between the movable buckle (12) and the bracket (1). The fan body (2) The lower end of the fan body (2) is circular, and an annular groove (201) is provided on the outer periphery of the lower end of the fan body (2); several annular conductive sheets (41) with the same center and spaced apart are provided on the adapter plate (4); the lower end of the fan body (2) is installed into the installation space at any angle, and the guide limiting block (13) contacts the outer surface of the lower end of the fan body (2) to limit the lower end of the fan body (2), and the fixed buckle (11) and the movable buckle (12) are both fastened into the annular groove (201) to limit the lower end of the fan body (2) in the installation space; The fan body (2) includes a base (21), a motor assembly (22) and a PCB board (23) mounted on the base (21), and fan blades (24) rotatably mounted on the motor assembly (22) via a pivot (241). The upper end of the movable buckle (12) is provided with a first inclined surface (120); the upper end of the guide limiting block (13) is provided with a guide inclined surface (130); the lower periphery of the fan body (2) is provided with a chamfer (20); the connector (5) is a spring pin connector, which has a spring pin (51) that is adapted to the circular conductive sheet (41) one by one, and the end of the spring pin (51) protrudes out of the lower end surface of the fan body (2).

2. The fan fixing structure that enables quick assembly and disassembly according to claim 1, characterized in that: When the lower end of the fan body (2) is installed into the installation space, it is first guided into the installation space by the guide limiting block (13), and the guide limiting block (13) limits the periphery of the lower end of the fan body (2). The lower end of the fan body (2) presses on the movable buckle (12) and pushes the movable buckle (12) to move backward until the lower end of the fan body (2) is completely installed into the installation space. The movable buckle (12) is reset under the elastic force of the spring (14), and the movable buckle (12) is embedded in the annular slot (201) to limit the lower end of the fan body (2) in the installation space. At the same time, the fixed buckle (11) is fastened into the annular slot (201) to lock the lower end of the fan body (2) onto the bracket (1).

3. A fan fixing structure capable of quick assembly and disassembly according to claim 1 or 2, characterized in that: The movable buckle (12) is provided with a first through hole (121). After the locking screw (122) passes through the first through hole (121), it is screwed and fixed to the bracket (1) to lock the movable buckle (12) onto the bracket (1).

4. The fan fixing structure according to claim 3, characterized in that: The bracket (1) is provided with a movable groove (15). The movable buckle (12) has a first sliding part (123) protruding downward on one side. The first sliding part (123) is placed in the movable groove (15) and can move in the movable groove (15). The spring (14) is also embedded in the movable groove (15). One end of the spring (14) is in contact with the inner wall of the movable groove (15), and the other end of the spring (14) is in contact with the rear end of the first sliding part (123). A cover plate (16) is also provided at the upper end of the movable groove (15). The cover plate (16) is placed above the first sliding part (123) and the spring (14).

5. The fan fixing structure according to claim 4, characterized in that: The movable groove (15) has guide rails (151) formed on both sides. The outer side of the first sliding part (123) is also provided with a rail groove (124) adapted to the guide rail (151). The guide rail (151) is embedded in the rail groove (124). The bracket (1) is also provided with a sliding groove (104) on the side of the movable groove (15). The lower end of the movable buckle (12) is also provided with a second sliding part (125). The second sliding part (125) is placed in the sliding groove (104) and can slide in the sliding groove (104). The second sliding part (125) and the first sliding part (123) are distributed in a Z-shape or reverse Z-shape.

6. The fan fixing structure according to claim 4, characterized in that: The rear end of the first sliding part (123) is provided with a circular groove (126), and a cylinder (127) is provided in the circular groove (126); the end of the spring (14) is embedded in the circular groove (126) and fixedly sleeved on the cylinder (127).

7. The fan fixing structure that enables quick assembly and disassembly according to claim 3, characterized in that: The base (21) is provided with a first window (211) that passes through its lower end face. The connector (5) is installed on the lower end of the PCB board (23). The lower end of the connector (5) also extends through the first window (211) and out of the lower end face of the base (21). The annular slot (201) is provided on the periphery of the lower end of the base (21).

8. The fan fixing structure according to claim 7, characterized in that: A cylinder (212) is provided on the base (21). An opening (213) penetrating the inner cavity of the cylinder (212) is provided at the lower end of the base (21). A first stepped groove (204) and a second stepped groove (205) are respectively provided at the upper and lower ends of the inner cavity of the cylinder (212). A first bearing (214) is embedded in the first stepped groove (204), and a second bearing (215) is embedded in the second stepped groove (205). The rotating shaft (241) is connected to the first bearing (214) and the second bearing (215). 5) The shaft (241) is fixed with a first retaining ring (242) at the lower end. The first retaining ring (242) abuts against the lower end of the inner circle of the second bearing (215) to limit the second bearing (215) in the second stepped groove (205). The upper end of the shaft (241) is also fitted with a tower-shaped spring (243) that is larger at the top and smaller at the bottom. The lower end of the tower-shaped spring (243) presses against the upper end of the inner circle of the first bearing (214), and the upper end of the tower-shaped spring (243) presses against the inner wall of the hub (244) in the fan blade (24).

9. A fan fixing structure capable of quick assembly and disassembly according to claim 3, characterized in that: The bracket (1) is equipped with a housing (3), the housing (3) has a convex ring (32) formed in the middle and a connecting post (33) located outside the convex ring (32). A second window (31) is formed inside the convex ring (32), and the fan body (2) is exposed in the second window (31). The connecting post (33) has a threaded groove (331), and the lower end of the convex ring (32) is also provided with a limiting groove (321). The bracket (1) is partially embedded in the limiting groove (321) for positioning. The bracket (1) is provided with a positioning groove (101) and a countersunk hole (102) that passes through the positioning groove (101). The end of the connecting post (33) is embedded in the positioning groove (101), and a second screw (34) passes through the countersunk hole (102) and is screwed into the threaded groove (331) to fix the housing (3) on the bracket (1).

Images