Fan

Abstract

The utility model relates to the technical field of fans, and provides a fan which comprises a machine head assembly, a machine base assembly and a limiting assembly. The machine head assembly comprises a cover body and fan blades; the machine base assembly comprises a motor base and a driving motor, and the driving motor is detachably connected with the fan blades in a coupling mode. The limiting assembly comprises a limiting piece and a reset piece, the limiting piece is provided with a first limiting part, the first end of the reset piece is fixed relative to the cover body or the motor base where the limiting assembly is located, and the second end of the reset piece is suitable for switching the limiting piece from the separation position to the limiting position; at the limiting position, the first limiting part and the second limiting part are limited and fixed; and at the separation position, the first limiting part and the second limiting part are separated from limiting. The reset part and the limiting part are independently arranged, so that the limiting part and the reset part are made of different materials or structures, the connecting strength of the machine head assembly and the machine base assembly is improved, meanwhile, the disassembly and assembly processes of the machine head assembly and the machine base assembly are smoother, user operation and user cleaning and storage are more convenient, and the maintenance and replacement cost is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of fans, in particular to a fan. Background Art

[0002] In the related art, the connection between the head component and the base component of the fan is relatively cumbersome. During use, dust will accumulate on the head component (such as the cover and the fan blade) of the fan. When the user cleans it, the components of the cover and the fan blade need to be disassembled one by one, resulting in difficult cleaning problems.

[0003] Based on the above problems, in the related art, it is proposed to couple the fan blade of the head component with the motor of the base component, and the cover is detachably connected to the base component, which is convenient for disassembling and cleaning the head component as a whole. However, it has high requirements for the structure or material of the detachable connecting piece, and there are problems such as difficult operation, poor service life, and difficult maintenance. Summary of the Utility Model

[0004] The utility model aims to solve at least one of the technical problems existing in the related art. For this reason, the utility model provides a fan. The independent setting of the reset piece and the limiting piece enables them to be made of different materials or structures. While improving the connection strength between the head component and the base component, it also makes the disassembly and assembly process between them smoother, reducing the maintenance and replacement costs.

[0005] The fan according to the embodiment of the utility model includes:

[0006] A head component, including a cover and a fan blade. The cover is provided with an accommodating space, and the accommodating space is suitable for placing the fan blade;

[0007] A base component, including a motor base. A driving motor is arranged in the motor base, and the driving motor is detachably coupled with the fan blade;

[0008] A limiting component, including a limiting piece and a reset piece. The limiting piece is provided with a first limiting part. The first end of the reset piece is fixed relative to the cover or the motor base where the limiting component is located, and the second end is suitable for pushing and switching the limiting piece from the disengaged position to the limiting position; the limiting component is arranged on one of the cover or the motor base, and the other is provided with a second limiting part corresponding to the first limiting part,

[0009] In the limiting position, when the fan blade is coupled with the driving motor, the first limiting part is fixedly limited with the second limiting part; in the disengaged position, the first limiting part is disengaged from the second limiting part.

[0010] According to the fan of the embodiment of the present utility model, in the form that the limiting component includes a limiting member and a reset member, during the process of disassembling or installing the head component, the independent setting of the reset member and the limiting member enables the two to be made of different materials or structures. For example, the limiting member can be made of a material with high structural strength and wear resistance, while the reset member can be made of other components with deformation ability or telescopic ability. While improving the connection strength between the head component and the base component, it also makes the disassembly and assembly process between the two smoother, more convenient for the user to operate, and facilitates the user to clean and store. And since the component that generates deformation in the limiting component is the reset member, the reset member can be replaced separately, reducing the maintenance and replacement cost of the fan.

[0011] According to an embodiment of the present utility model, the limiting member further includes a pressing portion, the pressing portion extends along the reset direction of the reset member, and at the limiting position, the pressing portion is located on the surface of the cover body or the motor base.

[0012] According to an embodiment of the present utility model, a hook is extended from the side wall of the pressing portion, and a limiting groove is formed between the side wall and the hook, and the limiting groove constitutes the first limiting portion;

[0013] Another one of the cover body or the motor base is provided with a limiting protrusion, the limiting protrusion constitutes the second limiting portion, and the limiting protrusion is adapted to be connected with the limiting groove in a limiting manner.

[0014] According to an embodiment of the present utility model, the connecting side wall extends along the insertion direction when the fan blade is coupled with the driving motor. Along the insertion direction, the cross-sectional area of the hook gradually decreases to form a guiding inclined surface on the surface of the hook.

[0015] According to an embodiment of the present utility model, the limiting component further includes a limiting base, the limiting member is connected to the limiting base through the reset member, and the limiting base is detachably connected to the cover body or the motor base.

[0016] According to an embodiment of the present utility model, the limiting base is provided with a guiding column, and the reset member is a spring sleeved on the guiding column.

[0017] According to an embodiment of the present utility model, the cover body includes a front grille and a rear grille, the front grille and the rear grille are buckled and enclose the accommodating space,

[0018] and / or,

[0019] When the limiting component is arranged on the cover body, the limiting component is arranged on the peripheral side of the cover body.

[0020] According to an embodiment of the present utility model, one of the motor base and the cover body is provided with a guiding and limiting post, and the other is provided with a guiding and limiting groove, and the guiding and limiting post and the guiding and limiting groove are adapted to be inserted and matched when the head assembly and the base assembly are connected.

[0021] According to an embodiment of the present utility model, the fan includes two of the limiting assemblies, and the two limiting assemblies are respectively arranged on both sides of the center of the cover body.

[0022] According to an embodiment of the present utility model, along the axial direction of the driving motor, connecting arms respectively extend on both sides of the motor base, and an installation position of the head assembly is formed between the two connecting arms;

[0023] The free ends of the connecting arms are provided with the second limiting portions, and the two limiting assemblies are respectively arranged corresponding to the second limiting portions on the free ends of the connecting arms.

[0024] According to an embodiment of the present utility model, the base assembly further includes a fixed base and a rotating bracket, the rotating bracket is movably connected to the fixed base, and the rotating bracket can horizontally rotate relative to the fixed base;

[0025] The rotating bracket is movably connected to the connecting arms of the motor base, and the motor base can pitch relative to the rotating bracket.

[0026] The additional aspects and advantages of the present utility model will be partly given in the following description, partly will become obvious from the following description, or will be understood through the practice of the present utility model. Description of the Drawings

[0027] In order to more clearly illustrate the technical solutions in the embodiments of the present utility model or the related art, the following will briefly introduce the drawings required for use in the description of the embodiments or the related art. Obviously, the following drawings are only some embodiments of the present utility model. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.

[0028] Figure 1 It is a schematic structural diagram of a fan provided by an embodiment of the present utility model.

[0029] Figure 2 It is an exploded view of a fan provided by an embodiment of the present utility model.

[0030] Figure 3 It is a front view of a fan provided by an embodiment of the present utility model.

[0031] Figure 4 It is along Figure 3 A cross-sectional view taken along the section line A-A in

[0032] Figure 5 is Figure 4 An enlarged view of the limiting member in the local B in the limiting position.

[0033] Figure 6 is Figure 4 An enlarged view of the limiting member in the local B in the disengaged position.

[0034] Reference numerals:

[0035] 10. Head assembly; 11. Housing; 111. Accommodating space; 112. Front mesh cover; 113. Rear mesh cover; 114. Guide limiting post; 12. Fan blade; 121. First coupling member; 13. Second limiting portion; 131. Limiting protrusion;

[0036] 20. Base assembly; 21. Motor base; 211. Guide limiting groove; 212. Connecting arm; 213. Motor cover; 22. Driving motor; 221. Second coupling member; 23. Fixed base; 24. Rotating bracket;

[0037] 30. Limiting assembly; 31. Limiting member; 311. First limiting portion; 312. Pressing portion; 313. Connecting side wall; 314. Hook; 315. Limiting groove; 316. Guide inclined surface; 32. Reset member; 33. Limiting base. Detailed implementation manners

[0038] The following further describes in detail the implementation manners of the present utility model in conjunction with the drawings and embodiments. The following embodiments are used to illustrate the present utility model, but cannot be used to limit the scope of the present utility model.

[0039] In the description of the embodiments of the present utility model, it should be noted that the orientation or positional relationship indicated by the terms "center", "longitudinal", "transverse", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the embodiments of the present utility model and simplifying the description, rather than indicating or implying 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 to the embodiments of the present utility model. In addition, the terms "first", "second", and "third" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance.

[0040] In the description of the embodiments of the present utility model, it should be noted that, unless otherwise clearly specified and defined, the terms "connected" and "coupled" should be understood in a broad sense. For example, it may be a fixed connection, a detachable connection, or an integral connection; it may be a mechanical connection or an electrical connection; it may be directly connected or indirectly connected through an intermediate medium. For those of ordinary skill in the art, the specific meanings of the above terms in the embodiments of the present utility model can be understood according to specific circumstances.

[0041] In the embodiments of the present utility model, unless otherwise clearly specified and defined, the first feature being "on" or "under" the second feature may be that the first and second features are in direct contact, or the first and second features are indirectly in contact through an intermediate medium. Moreover, the first feature being "above", "over" and "on top of" the second feature may be that the first feature is directly above or obliquely above the second feature, or merely indicates that the horizontal height of the first feature is higher than that of the second feature. The first feature being "under", "beneath" and "underneath" the second feature may be that the first feature is directly below or obliquely below the second feature, or merely indicates that the horizontal height of the first feature is less than that of the second feature.

[0042] In the description of this specification, the descriptions with reference to the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples", etc., mean that the specific features, structures, materials, or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the embodiments of the present utility model. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials, or characteristics described may be combined in a suitable manner in any one or more embodiments or examples. In addition, without conflict, those skilled in the art may combine and combine the different embodiments or examples described in this specification and the features of different embodiments or examples.

[0043] Combined with Figures 3 to 6As shown in the figure, the fan according to the embodiment of the present utility model includes a head assembly 10, a base assembly 20 and a limiting assembly 30; the head assembly 10 includes a housing 11 and a fan blade 12, the housing 11 is provided with an accommodation space 111, and the accommodation space 111 is suitable for placing the fan blade 12; the base assembly 20 includes a motor base 21, a driving motor 22 is arranged in the motor base 21, and the driving motor 22 is detachably coupled with the fan blade 12; the limiting assembly 30 includes a limiting member 31 and a reset member 32, the limiting member 31 is provided with a first limiting portion 311, the first end of the reset member 32 is fixed relative to the housing 11 or the motor base 21 where the limiting assembly 30 is located, and the second end is suitable for pushing and switching the limiting member 31 from the disengaged position to the limiting position; the limiting assembly 30 is arranged on one of the housing 11 or the motor base 21, and the other is provided with a second limiting portion 13 corresponding to the first limiting portion 311; in the limiting position, when the fan blade 12 is coupled with the driving motor 22, the first limiting portion 311 and the second limiting portion 13 are limited and fixed; in the disengaged position, the first limiting portion 311 and the second limiting portion 13 are disengaged from the limit.

[0044] For the fan according to the embodiment of the present utility model, when the user needs to disassemble the head assembly 10, the user moves the limiting member 31 to overcome the pushing effect of the reset member 32, switches the limiting member 31 from the limiting position to the disengaged position, so that the first limiting portion 311 and the second limiting portion 13 are disengaged from the limit, and then removes the head assembly 10 from the base assembly 20. During the process of taking the head assembly 10, the fan blade is decoupled from the driving motor 22, realizing the overall detachment of the housing 11 and the fan blade 12 from the base assembly 20. When the user has completed cleaning the head assembly 10 and needs to assemble the head assembly 10 to the base assembly 20, the user aligns the first limiting portion 311 with the second limiting portion 13 and the fan blade 12 with the driving motor 22 respectively. While the fan blade 12 is gradually coupled with the driving motor 22, and at the same time when the coupling is completed, the limiting member 31 reaches the limiting position. Under the pushing action of the reset member 32, the first limiting portion 311 of the limiting member 31 is limited and fixed with the second limiting portion 13, realizing the fixed installation of the head assembly 10 and the base assembly 20.

[0045] It should be noted that in the related art, the connection between the head assembly 10 and the base assembly 20 of the fan is relatively complicated. During use, dust will accumulate on the head assembly 10 (such as the housing 11, the fan blade 12, etc.) of the fan. When the user cleans, the components of the housing 11 and the fan blade 12, etc. need to be disassembled one by one, or the housing 11 cannot be completely disassembled, resulting in difficulties in cleaning and inconvenient storage.

[0046] Based on the above problems, in the related art, it is proposed to couple the fan with the motor of the base assembly 20 and detachably connect the cover 11 to the base assembly 20, which facilitates the overall disassembly and cleaning of the head assembly 10. However, it has relatively high requirements for the structure or material of the detachable connecting piece (it is necessary to take into account certain strength, wear resistance and good deformation ability), resulting in inconvenient use for users, high manufacturing cost of the fan, poor service life and difficult maintenance.

[0047] According to the fan of the embodiment of the present utility model, through the form that the limiting component 30 includes a limiting piece 31 and a reset piece 32, during the process of disassembling or installing the head assembly 10, the independent setting of the reset piece 32 and the limiting piece 31 enables the two to be made of different materials or structures. For example, the limiting piece 31 can be made of a material with high structural strength and wear resistance, while the reset piece 32 is made of other components with deformation ability or telescopic ability. While improving the connection strength between the head assembly 10 and the base assembly 20, it also makes the disassembly and assembly process between the two smoother, more convenient for users to operate, and convenient for users to clean and store; and since the component that generates deformation in the limiting component 30 is the reset piece 32, the reset piece 32 can be replaced separately, reducing the maintenance and replacement cost of the fan.

[0048] In this embodiment, the limiting base (33) is provided with a guiding column, and the reset piece 32 is a spring. The spring is sleeved on the guiding column, and the spring expands and contracts to push the limiting piece 31 to switch between the limiting position and the disengaging position. Of course, the reset piece 32 can also be made of components with telescopic functions such as plungers and silicone pads, or components with self-deformation ability.

[0049] In this embodiment, the limiting component 30 is arranged on the cover 11, and the second limiting portion 13 is arranged on the motor base 21; of course, the limiting component 30 can also be arranged on the motor base 21, and the second limiting portion 13 can be arranged on the cover 11.

[0050] In this embodiment, combined with Figure 1 and Figure 2 As shown, the fan blade 12 is connected with a first coupling member 121, the output shaft of the driving motor 22 is connected with a second coupling member 221, and the first coupling member 121 cooperates with the second coupling member 221 to realize the coupling of the fan blade 12 and the driving motor 22. And the first coupling member 121 can be inserted into or disengaged from the second coupling member 221 along the insertion direction, without the need for users to install and fix, improving the connection convenience.

[0051] In this embodiment, the motor base 21 further includes a motor cover 213. A placement cavity for the driving motor 22 is arranged on the motor base 21, and the motor cover 213 covers the placement cavity and is provided with a through hole through which the second coupling member 221 passes.

[0052] According to an embodiment of the present, combined with Figures 3 to 6As shown, the limiting member 31 further includes a pressing portion 312, and the pressing portion 312 extends along the reset direction of the reset member 32. In the limiting position, the pressing portion 312 is located on the surface of the cover body 11 or the motor base 21, including at least: the pressing portion 312 protrudes from the surface of the cover body 11 or the motor base 21, or the pressing portion 312 is flush with the surface of the cover body 11 or the motor base 21.

[0053] FIG. 5 shows a schematic diagram of the limiting member 31 in the limiting position, and FIG. 6 shows a schematic diagram of the limiting member 31 in the disengaged position.

[0054] In this embodiment, the user can press the pressing portion 312 to move the limiting member 31 against the pushing force of the reset member 32, so that the limiting member 31 is switched from the limiting position to the disengaged position. When the user does not press the pressing portion 312, the reset member 32 resets and pushes the limiting member 31 towards the second limiting portion 13.

[0055] In this embodiment, by providing the pressing portion 312, the user can conveniently touch and press the limiting member 31, which is convenient for disassembling the head assembly 10. And the protruding setting on the surface of the cover body 11 or the motor base 21 is beneficial for the user to more intuitively visually observe the position of the limiting member 31 or to clearly identify the position of the limiting member 31 by touch in the case of no vision, effectively improving the user experience. Of course, it can also be set that in the limiting position, the pressing portion 312 is lower than the surface of the cover body 11 or the motor base 21 to clearly distinguish the pressing portion 312 from the surface of the cover body 11 or the motor base 21 for the user to identify.

[0056] In this embodiment, the limiting component 30 is arranged on the cover body 11. Correspondingly, the pressing portion 312 protrudes from the surface of the cover body 11; when the limiting component 30 is arranged on the motor base 21, the pressing portion 312 protrudes from the surface of the motor base 21.

[0057] According to an embodiment of the present invention, in combination with Figures 3 to 6 As shown, a hook 314 extends from the side wall 313 of the pressing portion 312 in a direction away from the axis of the reset member 32. A limiting groove 315 is formed between the side wall 313 of the pressing portion 312 and the hook 314, and the limiting groove 315 constitutes the first limiting portion 311; the other of the cover body 11 or the motor base 21 is provided with a limiting protrusion 131, and the limiting protrusion 131 constitutes the second limiting portion 13. The limiting protrusion 131 is adapted to be connected with the limiting groove 315 in a limiting manner.

[0058] In this embodiment, taking the limit component 30 being arranged on the cover body 11 as an example, a limit groove 315 is formed by enclosing between the side wall 313 of the pressing part 312 and the hook 314. A limit protrusion 131 is arranged on the motor base 21. When the limiting member 31 is in the limiting position, the limit protrusion 131 is clamped in the limit groove 315. The side wall of the pressing part 312 prevents the limit protrusion 131 from moving along the insertion direction shown in the figure, and the hook 314 prevents the limit protrusion 131 from moving along the insertion direction shown in the figure, so as to realize the limit fixation of the head component 10 and the base component 20; when the user presses the pressing part 312, the whole limiting member 31 moves in the pressing direction (as Figure 6 shown as from left to right), the limit protrusion 131 is misaligned with the limit groove 315, and it does not hinder the movement of the limit hook 314, that is, the head component 10 can be separated from the base component 20 along the reverse direction of the insertion direction.

[0059] In other embodiments, the first limiting part 311 can also be set as the limit protrusion 131, and the second limiting part 13 as the limit groove 315. At this time, during the process of switching positions, the moving object is the limit protrusion 131 on the limiting member 31. Of course, the forms of the first limiting part 311 and the second limiting part 13 are not limited to the limit protrusion 131 and the limit groove 315, and can also be forms with detachable connection effects such as magnetic attraction connection and mortise and tenon connection.

[0060] According to an embodiment of the present invention, in combination with Figure 5 or Figure 6 shown, extending along the insertion direction when the fan blade 12 is coupled with the driving motor 22, the cross-sectional area of the hook 314 gradually decreases to form a guiding inclined surface 316 on the surface of the hook 314.

[0061] In this embodiment, when the head component 10 is connected to the base component 20 along the insertion direction, the limit protrusion 131 slides along the guiding inclined surface 316, and presses the limiting member 31 through the guiding inclined surface 316 to move it towards the reset member 32 until the limit protrusion 131 disengages from the guiding inclined surface 316, and the reset member 32 pushes the limiting member 31 to fix the limit groove 315 on the limiting member 31 and the limit protrusion 131 in a limited manner. Through the action of the guiding inclined surface 316, when assembling the head component 10 and the base component 20, the user does not need to press the pressing part 312, and the operation is simpler and more direct. Of course, the guiding inclined surface 316 can also be arranged on the limit protrusion 131.

[0062] According to an embodiment of the present invention, in combination with Figure 5 or Figure 6As shown, the limiting component 30 further includes a limiting base 33. The limiting member 31 and the limiting base 33 are connected by a reset member 32, and the limiting base 33 is detachably connected to the cover body 11 or the motor base 21. This enables the limiting component 30 to be a part independent of the base component 20 or the head component 10, thereby reducing the cost of separately replacing the limiting component 30.

[0063] According to an embodiment of the present invention, in combination with Figure 1 and Figure 2 As shown, the cover body 11 includes a front mesh cover 112 and a rear mesh cover 113. The front mesh cover 112 and the rear mesh cover 113 are snapped together to enclose an accommodation space 111. Among them, the limiting component 30 can be arranged on the peripheral side of the cover body 11 for the convenience of user operation. Especially when the limiting component 30 is arranged on the rear mesh cover 113, arranging the limiting component on the peripheral side of the rear mesh cover 113 avoids operation dead angles.

[0064] After the head component 10 is detached from the base component 20, it can be further disassembled into a front mesh cover 112, a rear mesh cover 113, and a fan blade 12, which is convenient for the user to clean the inside of the head component 10, that is, the inner side surface of the cover body 11. And arranging the limiting component 30 on the rear mesh cover 113, that is, from the user's visual field direction (from the front mesh cover 112 pointing to the rear mesh cover 113 direction), the limiting component 30 is hidden behind the front mesh cover 112, effectively improving the aesthetics of the fan.

[0065] Of course, in other embodiments, the limiting component 30 can also be arranged on the front mesh cover 112. Correspondingly, the motor base 21 needs to be connected to the front mesh cover 112.

[0066] According to an embodiment of the present invention, in combination with Figure 3 and Figure 4 As shown, one of the motor base 21 and the cover body 11 is provided with a guiding and limiting post 114, and the other is provided with a guiding and limiting groove 211. The guiding and limiting post 114 and the guiding and limiting groove 211 are adapted to be inserted and matched when the head component 10 and the base component 20 are connected. The cooperation between the guiding and limiting post 114 and the guiding and limiting groove 211 guides the assembly process of the head component 10 and the base component 20 and supports the weight, preventing the limiting component 30 from being damaged due to excessive force.

[0067] In this embodiment, the guiding and limiting post 114 is arranged on the cover body 11, and the motor base 21 is correspondingly provided with a guiding and limiting groove 211; of course, the guiding and limiting post 114 can also be arranged on the motor base 21, and the cover body 11 is correspondingly provided with a guiding and limiting groove 211.

[0068] In this embodiment, the guiding and limiting post 114 and the guiding and limiting groove 211 are conical in shape for shape matching. Of course, cylindrical, frustum-shaped, etc. can also be used.

[0069] In this embodiment, the number of the guiding and limiting posts 114 is two. Of course, the number of the guiding and limiting posts 114 can be adaptively adjusted according to the actual space layout requirements.

[0070] According to an embodiment of the present invention, in combination with Figure 3 and Figure 4 As shown, the fan includes two limiting components 30, and the two limiting components 30 are respectively arranged on both sides of the center of the housing 11.

[0071] In this embodiment, the two limiting components 30 arranged on both sides of the center of the housing 11 enable the user's hands to be on both sides of the center of the housing 11 when disassembling the head assembly 10, that is, the arms are in the form of surrounding the housing 11, which is beneficial to stably holding the head assembly 10, preventing it from falling during the disassembly and assembly process, and facilitating the user's operation. And being arranged on both sides of the center, the force is evenly distributed.

[0072] In this embodiment, as Figure 4 shown, the limiting components 30 are arranged on both sides of the housing 11 along the horizontal plane (the plane where the paper is located). Of course, based on the connection position of the motor base 21 and the housing 11, the position of the limiting components 30 can also be adaptively adjusted. For example, when the connection position of the motor base 21 and the housing 11 is above and below the housing 11 (in the direction perpendicular to the paper), the limiting components 30 can also be arranged above and below the housing 11 respectively.

[0073] According to an embodiment of the present invention, in combination with Figure 1 and Figure 2 As shown, along the axial direction of the driving motor 22, connection arms 212 extend respectively on both sides of the motor base 21, and the free ends of the connection arms 212 gradually approach each other to form an installation position for the head assembly 10 between the two connection arms 212; after the head assembly 10 is installed in the installation position, the overall center of gravity of the fan approaches the center of gravity of the base assembly 20, improving the running stability of the fan.

[0074] In this embodiment, a second limiting portion 13 is arranged at the free end of the connection arm 212, and the two limiting components 30 are respectively arranged corresponding to the second limiting portion 13 on the free end of the connection arm 212. Different from the prior art in which the limiting components 30 are arranged between the outer shell of the driving motor 22 and the housing 11, the area between the three-point fixing form of the motor base 21 and the housing 11 (the two limiting components 30 and the coupling position of the fan blade 12 and the driving motor 22) effectively covers the overall center of gravity of the fan, ensuring the running stability of the fan and enabling the head assembly 10 of the fan in this application to use a circulation fan with a larger structure and greater weight. The built-in air duct system of the circulation fan sucks the surrounding air into the fan body and then releases it in a larger range and more evenly, forming a three-dimensional circulating air flow.

[0075] According to an embodiment of the present invention, in combination with Figure 1 andFigure 2 As shown, the base assembly 20 also includes a fixed base 23 and a rotating bracket 24. The rotating bracket 24 is movably connected to the fixed base 23, and the rotating bracket 24 can rotate horizontally relative to the fixed base 23; the rotating bracket 24 is movably connected to the connecting arm 212 of the motor base 21, and the motor base 21 can pitch relative to the rotating bracket 24. That is, the whole of the head assembly 10, the motor base 21 and the rotating bracket 24 can rotate horizontally relative to the fixed base 23, and the whole formed by the head assembly 10 and the motor base 21 can pitch relative to the rotating bracket 24, thereby realizing the 360-degree free rotation of the head assembly 10 relative to the fixed base 23, so that the air outlet of the fan blades 12 on the head assembly 10 can be rotated at any angle according to user needs, thereby improving the flexibility of use.

[0076] In this embodiment, the rotating bracket 24 includes a middle section connected to the fixed base 23 and connecting sections extending on both sides of the middle section. The free ends of the two connecting sections are respectively connected to the side of the connecting wall away from the installation position, so that the rotating bracket 24 can support the head assembly 10 and the motor base 21 while reducing the volume as much as possible to reduce the impact on the air outlet of the head assembly 10.

[0077] Finally, it should be noted that the above implementation modes are only used to illustrate the present invention, rather than to limit the present invention. Although the present invention is described in detail with reference to the embodiments, a person skilled in the art should understand that various combinations, modifications or equivalent replacements of the technical solutions of the present invention do not depart from the spirit and scope of the technical solutions of the present invention, and should be included in the scope of the claims of the present invention.

Claims

1. A fan, characterized in that, Comprising: A head assembly (10), including a cover body (11) and a fan blade (12), the cover body (11) encloses an accommodation space (111), and the accommodation space (111) is adapted to place the fan blade (12); A base assembly (20), including a motor base (21), a driving motor (22) is disposed within the motor base (21), and the driving motor (22) is detachably coupled to the fan blade (12); A limiting assembly (30), including a limiting member (31) and a reset member (32), the limiting member (31) is provided with a first limiting portion (311), a first end of the reset member (32) is fixed relative to the cover body (11) or the motor base (21) where the limiting assembly (30) is located, and a second end is adapted to push and switch the limiting member (31) from a disengaged position to a limiting position; the limiting assembly (30) is disposed on one of the cover body (11) or the motor base (21), and a second limiting portion (13) is provided on the other corresponding to the first limiting portion (311); In the limiting position, when the fan blade (12) is coupled to the driving motor (22), the first limiting portion (311) and the second limiting portion (13) are limit-fixed; in the disengaged position, the first limiting portion (311) and the second limiting portion (13) are disengaged from the limit.

2. The fan according to claim 1, characterized in that, The limiting member (31) further includes a pressing portion (312), the pressing portion (312) extends along the reset direction of the reset member (32), and in the limiting position, the pressing portion (312) is located on the surface of the cover body (11) or the motor base (21).

3. The fan according to claim 2, characterized in that A hook (314) extends from a side wall (313) of the pressing portion (312), and a limiting groove (315) is formed between the side wall (313) and the hook (314), and the limiting groove (315) constitutes the first limiting portion (311); The other of the cover body (11) or the motor base (21) is provided with a limiting protrusion (131), the limiting protrusion (131) constitutes the second limiting portion (13), and the limiting protrusion (131) is adapted to be limit-connected with the limiting groove (315).

4. The fan according to claim 1, characterized in that The limiting assembly (30) further includes a limiting base (33), the limiting member (31) is connected to the limiting base (33) through the reset member (32), and the limiting base (33) is detachably connected to the cover body (11) or the motor base (21).

5. The fan according to claim 4, characterized in that, The limiting base (33) is provided with a guiding post, and the reset member (32) is a spring sleeved on the guiding post.

6. The fan according to claim 1, characterized in that, The cover body (11) includes a front mesh cover (112) and a rear mesh cover (113), the front mesh cover (112) and the rear mesh cover (113) are snapped together and enclose the accommodation space (111), And / or, the limiting assembly (30) is disposed on the peripheral side of the cover body (11).

7. The fan according to claim 1, characterized in that, One of the motor base (21) and the cover body (11) is provided with a guiding and limiting post (114), and the other is provided with a guiding and limiting groove (211). The guiding and limiting post (114) and the guiding and limiting groove (211) are adapted to be inserted and matched when the head assembly (10) and the base assembly (20) are connected.

8. The fan according to any one of claims 1 to 7, characterized in that The fan includes two of the limiting components (30), and the two limiting components (30) are respectively arranged on both sides of the center of the cover body (11).

9. The fan according to claim 8, characterized in that, Along the axial direction of the driving motor (22), connecting arms (212) respectively extend from both sides of the motor base (21), and an installation position for the head assembly (10) is formed between the two connecting arms (212); The free ends of the connecting arms (212) are provided with the second limiting portions (13), and the two limiting components (30) are respectively arranged corresponding to the second limiting portions (13) on the free ends of the connecting arms (212).

10. The fan according to claim 9, characterized in that, The base assembly (20) further includes a fixed base (23) and a rotating bracket (24). The rotating bracket (24) is movably connected to the fixed base (23), and the rotating bracket (24) can horizontally rotate relative to the fixed base (23); The rotating bracket (24) is movably connected to the connecting arms (212) of the motor base (21), and the motor base (21) can pitch relative to the rotating bracket (24).

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