Quick release structure and fan

By adopting a quick disassembly structure in the fan and using magnetic suction connection and docking structure for positioning and coordination, the problem of low disassembly and assembly efficiency of existing fans is solved, and the quick disassembly and assembly of the fan head is realized, improving user experience and operation convenience.

CN222576987UActive Publication Date: 2025-03-07GREE ELECTRIC APPLIANCE INC OF ZHUHAI
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Patent Information

Application Number
CN202421477182.7
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-06-26
Publication Date
2025-03-07
Estimated Expiration
2034-06-26

AI Technical Summary

Technical Problem

The existing fans are inefficient when disassembling and assembling, and users need to rotate the head or base multiple times to complete the disassembly, which affects the user experience.

Method used

The quick-disassembly structure is adopted, including a base, a bracket, a first magnetic suction piece and a second magnetic suction piece. The positioning and matching of the magnetic suction connection and docking structure are used to realize the quick disassembly and assembly of the fan head.

Benefits of technology

It improves the disassembly and assembly efficiency and operation convenience of the fan head, without the need for multiple rotations, enhances the user experience, and improves the accuracy and stability of the disassembly and assembly of the machine head.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to a quick release structure and a fan. The quick release structure comprises a base, a support, a first magnetic attraction part and a second magnetic attraction part. The base is provided with a butt joint structure, the support is detachably arranged on the base and used for being connected with a machine head of the fan, and the support is provided with a butt joint matching structure matched with the butt joint structure. The first magnetic attraction piece is arranged on the base, and the second magnetic attraction piece is arranged on the support. The first magnetic attraction piece and the second magnetic attraction piece attract each other. According to the quick release structure, the machine head can be disassembled and assembled relative to the base through the bracket. The support and the base form magnetic attraction connection through the first magnetic attraction piece and the second magnetic attraction piece and are in positioning fit through the butt joint structure and the butt joint matching structure. In this way, the machine head of the fan can be quickly disassembled and assembled relative to the base in a magnetic attraction mode, and a user does not need to rotate the whole machine head or the base for multiple circles to achieve disassembly and assembly. In addition, the butt joint structure and the butt joint matching structure can improve the disassembly and assembly accuracy and the stability of the machine head in the installation state.
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Description

Technical Field

[0001] The present application relates to the field of electrical technology, and in particular to a quick-release structure and a fan. Background Art

[0002] With the improvement of people's living standards, more and more people like to carry fans for ventilation and cooling off when they go outdoors. Therefore, the number of people who choose to use outdoor fans is gradually increasing. Currently, some floor-standing outdoor fans on the market are large in size, which is not convenient for users to store and carry, so they need to be disassembled and assembled.

[0003] In the related art, most fans are disassembled and assembled by means of threads or snaps. When the user needs to store the fan, the base must be separated from the head by twisting the threads, and the entire head or base must be twisted and rotated multiple times to complete the disassembly. This method of disassembly and assembly is inefficient and affects the user experience. Utility Model Content

[0004] Based on this, it is necessary to provide a quick-disassembly structure and a fan that are easy to disassemble and assemble in order to solve the above problems.

[0005] A quick-release structure, comprising:

[0006] A base having a docking structure;

[0007] A bracket is detachably arranged on the base and used to connect the head of the fan; the bracket has a docking structure that cooperates with the docking structure;

[0008] A first magnetic attraction component and a second magnetic attraction component, wherein the first magnetic attraction component is disposed on the bracket, and the second magnetic attraction component is disposed on the base; the first magnetic attraction component and the second magnetic attraction component attract each other.

[0009] In one embodiment, one of the docking structure and the docking matching structure is a positioning column, and the longitudinal direction of the positioning column is arranged along the disassembly and assembly direction of the bracket and the base, and the other of the docking structure and the docking matching structure is a positioning hole.

[0010] In one of the embodiments, the quick-release structure further includes a matching piece, and the matching piece is arranged in a matching gap between the docking structure and the docking matching structure.

[0011] In one embodiment, the matching piece includes a collar and a sleeve, the collar is sleeved on the positioning column; the sleeve is sleeved in the positioning hole and sleeved on the collar.

[0012] In one embodiment, the collar and the sleeve are interference fit; and / or, the collar and the sleeve are snap fit.

[0013] In one embodiment, at least one of the collar and the sleeve is made of metal.

[0014] In one embodiment, the base has a bearing surface, and the docking structure is located on the bearing surface, the bracket has a lower end surface abutting against the bearing surface, and the docking structure is located on the lower end surface;

[0015] The first magnetic attraction member is a magnet block and is arranged on the back side of the lower end surface; the second magnetic attraction member is a magnetic metal plate and is arranged on the bearing surface, and the second magnetic attraction member has an avoidance hole for avoiding the docking structure.

[0016] In one embodiment, the back side of the lower end surface has a mounting position and a plurality of positioning ribs, the first magnetic component is installed at the mounting position, the plurality of positioning ribs are arranged around the mounting position, and the plurality of positioning ribs are interference fit with the first magnetic component located at the mounting position.

[0017] In one embodiment, the quick-release structure includes a plurality of first magnetic elements, the back side of the lower end surface has a plurality of mounting positions, and all of the mounting positions are arranged around the docking structure.

[0018] A fan comprises the quick-release structure mentioned above.

[0019] The above-mentioned quick-release structure has a bracket that can be connected to the head of the fan, so the head can be disassembled and assembled relative to the base through the bracket. A magnetic connection is formed between the bracket and the base through the first magnetic member and the second magnetic member, and positioning and matching are performed through the docking structure and the docking matching structure. When it is necessary to disassemble the head, the magnetic connection between the bracket and the base can be released by overcoming the magnetic attraction between the first magnetic member and the second magnetic member, and then the head can be removed relative to the base. In this way, the head of the fan can be quickly disassembled and assembled relative to the base by magnetic attraction, without the user having to rotate the entire head or base multiple times to achieve disassembly and assembly, thereby improving the user's disassembly and assembly efficiency and operational convenience. In addition, the docking structure and the docking matching structure can improve the accuracy of disassembly and assembly of the head and the stability of the head when it is in the installed state. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0021] Figure 1 Schematic diagram of the structure of a fan with a quick-release structure in one embodiment of the present application.

[0022] Figure 2 for Figure 1 A schematic cross-sectional view of the fan is shown.

[0023] Figure 3 for Figure 2 An enlarged schematic diagram of the fan at point A is shown.

[0024] Figure 4 for Figure 1 A schematic diagram of the structure of the bracket in the quick-release structure is shown.

[0025] Figure 5 for Figure 4 Another perspective structural diagram of the bracket shown.

[0026] Figure 6 for Figure 1 A partial structural schematic diagram of the quick-release structure shown.

[0027] Figure 7 for Figure 1 A schematic structural diagram of the base in the quick-release structure shown.

[0028] Figure 8 for Figure 1 A schematic structural diagram of the first magnetic attraction component in the quick-release structure shown.

[0029] Fig. 9 for Figure 1 A schematic structural diagram of the second magnetic attraction component in the quick-release structure shown.

[0030] Explanation of the accompanying drawings: 100, fan; 10, head; 30, quick-release structure; 31, base; 311, docking structure; 312, support; 313, bearing surface; 3131, first positioning hole; 32, bracket; 321, docking structure; 322, connecting hole; 323, lower end surface; 324, upper end surface; 3241, installation position; 3242, positioning rib; 33, first magnetic attraction; 34, second magnetic attraction; 341, avoidance hole; 342, second positioning hole; 35, screw; 36, ring; 37, sleeve. DETAILED DESCRIPTION

[0031] In order to make the above-mentioned purposes, features and advantages of the present application more obvious and easy to understand, the specific implementation methods of the present application are described in detail below in conjunction with the accompanying drawings. In the following description, many specific details are set forth to facilitate a full understanding of the present application. However, the present application can be implemented in many other ways different from those described herein, and those skilled in the art can make similar improvements without violating the connotation of the present application, so the present application is not limited by the specific embodiments disclosed below.

[0032] In the description of the present application, it should be understood that if the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. appear, the orientation or position relationship indicated by these terms is based on the orientation or position relationship shown in the accompanying drawings, which is only for the convenience of describing the present application and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present application.

[0033] In addition, if the term "and / or" appears, "and / or" is merely a description of the association relationship of associated objects, indicating that three relationships may exist, for example, A and / or B can represent: A exists alone, A and B exist at the same time, and B exists alone. In addition, the character " / " in this article generally indicates that the objects associated before and after are in an "or" relationship. If the terms "first" and "second" appear, these terms are only used for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In the description of this application, if the term "multiple" appears, the meaning of "multiple" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0034] In this application, unless otherwise clearly specified and limited, if the terms "installed", "connected", "connected", "fixed" and the like appear, these terms should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integrated connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to the specific circumstances.

[0035] In the present application, unless otherwise clearly specified and limited, if there is a description that a first feature is "above" or "below" a second feature, etc., or similar descriptions appear, it may mean that the first and second features are in direct contact, or that the first and second features are in indirect contact through an intermediate medium. Moreover, the first feature being "above", "above" and "above" the second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. The first feature being "below", "below" and "below" the second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.

[0036] It should be noted that if an element is referred to as being "fixed to" or "disposed on" another element, it may be directly on the other element or there may be a central element. If an element is considered to be "connected to" another element, it may be directly connected to the other element or there may be a central element at the same time. If present, the terms "vertical", "horizontal", "upper", "lower", "left", "right" and similar expressions used in this application are for illustrative purposes only and do not represent the only implementation method.

[0037] See also Figures 1 to 3 The quick-release structure 30 provided in one embodiment of the present application includes a base 31, a bracket 32, a first magnetic member 33 and a second magnetic member 34. The base 31 has a docking structure 311, the bracket 32 ​​is detachably disposed on the base 31 and is used to connect the head 10 of the fan 100, and the bracket 32 ​​has a docking matching structure 321 that matches the docking structure 311. The first magnetic member 33 and the second magnetic member 34, the first magnetic member 33 is disposed on the base 31, and the second magnetic member 34 is disposed on the bracket 32. The first magnetic member 33 and the second magnetic member 34 attract each other.

[0038] The quick-release structure 30 is used in the fan 100 to realize quick disassembly and assembly of the head 10. The base 31 may further include a support 312 for supporting the fan 100. Specifically, the support 312 may be, but is not limited to, a triangular support 32. It is understandable that in some other embodiments, the support 312 may also be round, square, etc., to adapt to the use environment.

[0039] The bracket 32 ​​is used to connect the head 10 of the fan 100, and can be disassembled relative to the base 31, so that the head 10 can be separated or installed relative to the support 312. The bracket 32 ​​can be configured with a connection hole 322, and the screw 35 passes through the connection hole 322 to connect with the head 10, so that the bracket 32 ​​is fixed to the head 10. The docking structure 311 of the base 31 and the docking matching structure 321 of the bracket 32 ​​can be disassembled along the disassembly direction of the two (such as Figure 2 The docking structure 311 and the docking matching structure 321 can play a positioning and guiding role.

[0040] It can be understood that the first magnetic member 33 and the second magnetic member 34 attract each other, and when the bracket 32 ​​is installed on the base 31, the first magnetic member 33 and the second magnetic member 34 form an effective magnetic attraction, reducing the probability of the two being separated. When the head 10 needs to be removed, the magnetic attraction must be overcome before the head 10 can be removed.

[0041] The bracket 32 ​​of the quick-release structure 30 can be connected to the head 10 of the fan 100, so the head 10 can be disassembled relative to the base 31 through the bracket 32. The bracket 32 ​​and the base 31 form a magnetic connection through the first magnetic component 33 and the second magnetic component 34, and are positioned and matched through the docking structure 311 and the docking matching structure 321. When it is necessary to disassemble the head 10, the magnetic connection between the bracket 32 ​​and the base 31 can be released by overcoming the magnetic attraction between the first magnetic component 33 and the second magnetic component 34, and then the head 10 can be removed relative to the base 31. In this way, the head 10 of the fan 100 can be quickly disassembled relative to the base 31 by magnetic attraction, without the user having to rotate the entire head 10 or the base 31 for multiple turns to achieve disassembly and assembly, thereby improving the user's disassembly and assembly efficiency and operational convenience. In addition, the docking structure 311 and the docking matching structure 321 can improve the accuracy of disassembly and assembly of the head 10 and the stability of the head 10 in the installed state.

[0042] Please also read Figures 4 to 7 In some embodiments, one of the docking structure 311 and the docking matching structure 321 is a positioning column, and the longitudinal direction of the positioning column is arranged along the disassembly and assembly direction of the bracket 32 ​​and the base 31, and the other of the docking structure 311 and the docking matching structure 321 is a positioning hole.

[0043] It can be understood that the positioning hole cooperates with the positioning column, and when the bracket 32 ​​is installed on the base 31, the positioning column is inserted into the positioning hole. The longitudinal direction of the positioning column is consistent with the disassembly direction, and accordingly, the depth direction of the positioning hole is also consistent with the disassembly direction.

[0044] The positioning column may be, but is not limited to, a cylindrical shape with equal cross-section and central symmetry or a non-central symmetry shape with a fool-proof structure, which is not specifically limited here. In addition, the positioning column may also be a hollow structure with reinforcing ribs therein.

[0045] During installation, after aligning the docking structure 311 and the docking matching structure 321, the user can plug and unplug them along the disassembly direction to complete the docking matching of the docking structure 311 and the docking matching structure 321. After the docking is completed, the first magnetic attraction member 33 and the second magnetic attraction member 34 form an effective magnetic attraction. During removal, the user only needs to directly unplug the connected support 312 and the head 10. In this way, the user can achieve the installation and removal of the head 10 relative to the base 31 by simply plugging and unplugging.

[0046] Specifically, the bracket 32 ​​and the base 31 can be assembled and disassembled along the height direction of the fan 100, and the assembly and disassembly direction is the height direction of the fan 100. In this way, the docking structure 311 and the docking matching structure 321 form a docking match along the assembly and disassembly direction, and the probability of the head 10 being separated and tipped over by an external force when the head 10 is not assembled and disassembled can be reduced.

[0047] In some embodiments, the quick-release structure 30 further includes a matching piece, which is disposed in a matching gap between the docking structure 311 and the docking matching structure 321 .

[0048] In this way, the matching piece can fill the matching gap between the docking structure 311 and the docking matching structure 321, improve the tightness of the matching between the two, and make the whole machine more stable.

[0049] In some embodiments, the fitting includes a collar 36 and a sleeve 37 , wherein the collar 36 is sleeved on the positioning post and the sleeve 37 is disposed in the positioning hole and sleeved on the collar 36 .

[0050] The collar 36 and the sleeve 37 are tightly fitted with each other, and the clearance between the two is not greater than 1 mm. The collar 36 is connected to the positioning column, and the connection method can be but not limited to riveting, injection molding, etc., and the sleeve 37 is connected to the hole wall of the positioning hole, and the connection method can be but not limited to riveting, injection molding, etc.

[0051] In this way, the tightness of the fit between the docking structure 311 and the docking matching structure 321 can be controlled by the tightness of the fit between the ring 36 and the sleeve 37. The sizes of the ring 36 and the sleeve 37 are easier to control, and the production difficulty is lower, which helps to improve the accuracy and stability of the fit between the bracket 32 ​​and the base 31.

[0052] Further, the collar 36 and the sleeve 37 are interference fit; and / or, the collar 36 and the sleeve 37 are snap fit.

[0053] In this way, the docking structure 311 and the docking matching structure 321 produce a certain connection effect, which serves as a supplement to the magnetic attraction and improves the stability of the connection between the bracket 32 ​​and the base 31.

[0054] In some embodiments, at least one of the collar 36 and the sleeve 37 is made of metal.

[0055] Metal has good wear resistance, and the use of metal materials to make the collar 36 and / or the sleeve 37 can increase their service life. In addition, the metal can also be a magnetic metal, and generate magnetic attraction with the first magnetic attraction member 33 or the second magnetic attraction member 34.

[0056] Please also read Figure 8 and Fig. 9 In some embodiments, the base 31 has a bearing surface 313, and the docking structure 311 is located on the bearing surface 313. The bracket 32 ​​has a lower end surface 323 that abuts against the bearing surface 313, and the docking structure 321 is located on the lower end surface 323. The first magnetic member 33 is a magnet block and is disposed on the back of the lower end surface 323. The second magnetic member 34 is a magnetic metal plate and is disposed on the bearing surface 313, and the second magnetic member 34 has an avoidance hole 341 that avoids the docking structure 311.

[0057] The back side of the lower end surface 323 is the surface opposite to the lower end surface 323 , which may also be referred to as the upper end surface 324 . The upper end surface 324 may also be constructed with reinforcing ribs to improve the structural strength of the bracket 32 ​​.

[0058] It can be understood that when the bracket 32 ​​is installed on the base 31, the second magnetic member 34 is located between the lower end surface 323 and the bearing surface 313, and the lower end surface 323 and the bearing surface 313 are indirectly abutted through the second magnetic member 34. The avoidance hole 341 of the second magnetic member 34 can avoid the docking structure 311 of the base 31 to avoid hindering its docking with the docking matching structure 321. A first positioning hole 3131 is provided on the bearing surface 313 of the base 31, and a second positioning hole 342 matching the first positioning hole 3131 is provided on the second magnetic member 34.

[0059] The second magnetic member 34 is made of a magnetic metal plate, and there is no need to distinguish the positive and negative poles of the magnet, so the assembly is simple and error-free. Specifically, the magnetic metal plate is made of soft magnetic material, such as pure iron, low carbon steel, iron-silicon alloy, etc. In some other embodiments, the first magnetic member 33 and the second magnetic member 34 may both be magnets, or the second magnetic member 34 may be a magnet and the first magnetic member 33 may be a metal member, which is not specifically limited here.

[0060] In this way, the bracket 32 ​​is docked with the base 31 , and after the two are abutted, the docking structure 311 and the docking matching structure 321 are matched, the first magnetic attraction component 33 and the second magnetic attraction component 34 attract each other, and the bracket 32 ​​and the base 31 are connected.

[0061] In some embodiments, the back side of the lower end surface 323, i.e., the upper end surface 324, has a mounting position 3241 and a plurality of positioning ribs 3242, the first magnetic component 33 is installed at the mounting position 3241, the plurality of positioning ribs 3242 are arranged around the mounting position 3241, and the plurality of positioning ribs 3242 are interference fit with the first magnetic component 33 located at the mounting position 3241.

[0062] Taking the cross-section of the first magnetic member 33 as a circle as an example, the mounting position 3241 is circular, and a plurality of positioning ribs 3242 are arranged around and clamp the first magnetic member 33 located at the mounting position 3241 .

[0063] In this way, the first magnetic member 33 installed in the installation position 3241 can be fixed by the positioning rib 3242, so the assembly of the first magnetic member 33 is simple and efficient.

[0064] Furthermore, the quick-release structure 30 includes a plurality of first magnetic elements 33 , and a plurality of mounting positions 3241 are formed on the back of the lower end surface 323 , and all the mounting positions 3241 are disposed around the docking structure 321 .

[0065] It can be understood that the first magnetic component 33 is arranged in a one-to-one correspondence with the installation position 3241, and all the installation positions 3241 are distributed on the surrounding side of the docking structure 321. The docking structure 321 is located at the center of the bracket 32. Correspondingly, the second magnetic component 34 is a metal ring with an avoidance hole 341 in the center.

[0066] The number of the first magnetic member 33 may be, but not limited to, 2, 3, 4 or more, and the shape may be, but not limited to, cylindrical. In some other embodiments, the first magnetic member 33 may also be an entire structure disposed around the docking structure 321, and may achieve magnetic attraction with the second magnetic member 34, which is not specifically limited herein.

[0067] In this way, the first magnetic member 33 can form magnetic attraction with the second magnetic member 34 at multiple locations around the docking structure 321, so that the bracket 32 ​​and the base 31 are stably connected and the probability of tilting is reduced.

[0068] The quick-release structure 30 includes a base 31, a bracket 32, a first magnetic component 33, a second magnetic component 34, a collar 36 and a sleeve 37. The base 31 has a positioning column, the bracket 32 ​​has a positioning hole that cooperates with the positioning column, the first magnetic component 33 is a magnet block and there are multiple of them, and the second magnetic component 34 is a metal ring with a avoidance hole 341 in the center. During assembly, first complete the assembly of the bracket 32 ​​and its components and connect the bracket 32 ​​to the machine head 10, as well as the assembly of the base 31 and its components, wherein the assembly of the base 31 and its components includes: aligning the avoidance hole 341 of the second magnetic component 34 with the docking structure 311, aligning the second positioning hole 342 with the first positioning hole 3131, and pressing them onto the bearing surface 313; sleeve the collar 36 on the docking structure 311, and rivet it to the docking structure 311. The assembly of the bracket 32 ​​and its parts includes: installing the first magnetic member 33 at the installation position 3241 and clamping it with the positioning rib 3242; installing the sleeve 37 into the docking structure 321 and connecting the docking structure 321, and fixing the bracket 32 ​​to the head 10 with the screw 35 through the connection hole 322. Then, align the ring 36 and insert it into the sleeve 37, so that the two form a gap and fit tightly, making the whole machine more stable, and the first magnetic member 33 and the second magnetic member 34 form magnetic attraction. When the user needs to disassemble the head 10, just pull the head 10 and the bracket 32 ​​out of the base 31.

[0069] The present application also provides a fan 100 , comprising the above-mentioned quick-release structure 30 .

[0070] The technical features of the above-described embodiments may be arbitrarily combined. To make the description concise, not all possible combinations of the technical features in the above-described embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0071] The above-described embodiments only express several implementation methods of the present application, and the descriptions thereof are relatively specific and detailed, but they cannot be construed as limiting the scope of the patent application. It should be pointed out that, for a person of ordinary skill in the art, several variations and improvements can be made without departing from the concept of the present application, and these all belong to the protection scope of the present application. Therefore, the protection scope of the patent application shall be subject to the attached claims.

Claims

1. A quick-release structure, characterized in that: The quick-release structure comprises: A base (31) having a docking structure (311); A bracket (32) is detachably disposed on the base (31) and is used to connect to the head (10) of the fan; the bracket (32) has a docking structure (321) that cooperates with the docking structure (311); A first magnetic attraction component (33) and a second magnetic attraction component (34), wherein the first magnetic attraction component (33) is arranged on the bracket (32), and the second magnetic attraction component (34) is arranged on the base (31); the first magnetic attraction component (33) and the second magnetic attraction component (34) attract each other.

2. The quick-release structure according to claim 1, characterized in that: One of the docking structure (311) and the docking matching structure (321) is a positioning column, and the longitudinal direction of the positioning column is arranged along the disassembly direction of the bracket (32) and the base (31), and the other of the docking structure (311) and the docking matching structure (321) is a positioning hole.

3. The quick-release structure according to claim 2, characterized in that: The quick-release structure also includes a matching piece, and the matching piece is arranged in a matching gap between the docking structure (311) and the docking matching structure (321).

4. The quick-release structure according to claim 3, characterized in that: The matching piece comprises a collar (36) and a sleeve (37); the collar (36) is sleeved on the positioning column; the sleeve (37) is arranged in the positioning hole and sleeved on the collar (36).

5. The quick-release structure according to claim 4, characterized in that: The collar (36) and the sleeve (37) are interference fit; and / or the collar (36) and the sleeve (37) are snap fit.

6. The quick-release structure according to claim 4, characterized in that: At least one of the collar (36) and the sleeve (37) is made of metal.

7. The quick-release structure according to claim 1, characterized in that: The base (31) has a bearing surface (313), and the docking structure (311) is located on the bearing surface (313); the bracket (32) has a lower end surface (323) abutting against the bearing surface (313), and the docking matching structure (321) is located on the lower end surface (323); The first magnetic attraction member (33) is a magnet block and is disposed on the back side of the lower end surface (323); the second magnetic attraction member (34) is a magnetic metal plate and is disposed on the bearing surface (313); the second magnetic attraction member (34) has an avoidance hole (341) for avoiding the docking structure (311).

8. The quick-release structure according to claim 7, characterized in that: The back side of the lower end surface (323) comprises a mounting position (3241) and a plurality of positioning ribs (3242); the first magnetic attraction component (33) is mounted on the mounting position (3241); the plurality of positioning ribs (3242) are arranged around the mounting position (3241); and the plurality of positioning ribs (3242) are interference fit with the first magnetic attraction component (33) located at the mounting position (3241).

9. The quick-release structure according to claim 8, characterized in that: The quick-release structure comprises a plurality of first magnetic attracting members (33); the back side of the lower end surface (323) comprises a plurality of mounting positions (3241), and all of the mounting positions (3241) are arranged around the docking matching structure (321).

10. A fan, characterized in that: It comprises the quick-release structure described in any one of claims 1 to 9.