Air circulation fan structure

Abstract

The utility model belongs to the technical field of air circulation fans, and particularly relates to an air circulation fan structure which comprises a base, a rotary driving mechanism, a rotary table and a circulation fan main machine. A supporting surface is arranged at the bottom of the base, a mounting cavity is formed in the base, a top plate is formed at the top of the mounting cavity, and the top plate and the supporting surface are obliquely arranged; the rotary driving mechanism comprises a mounting seat, a driving motor, a driving gear and a driven gear; the mounting seat is arranged on the inner side of the top plate, a cavity is formed in the bottom side of the mounting seat, the driving gear and the driven gear are arranged in the cavity and are meshed with each other, the driving motor is arranged on the bottom side of the mounting seat, and the driving gear is arranged on the bottom side of the mounting seat; a connecting shaft penetrating through the mounting seat and the top plate is arranged on the top side of the driven gear; the rotating table is arranged at the end, extending out of the mounting cavity, of the connecting shaft and comprises a mounting surface perpendicular to the connecting shaft, and the mounting surface is provided with two inserting sleeves vertically extending upwards; the bottom side of the circulating fan main machine is provided with two plug connectors extending downwards, and the plug connectors are connected into the plug sleeves in an inserted mode.

Description

Technical Field

[0001] This utility model belongs to the field of air circulation technology, and in particular relates to an air circulation fan structure. Background Technology

[0002] Air circulators are primarily used for indoor air circulation to ensure a more even distribution of indoor air temperature. They can also be used as regular fans.

[0003] For example, Chinese patent document CN217999915U discloses a detachable air circulator fan structure, specifically including a spherical mesh cover, a drive assembly, fan blades, and a support base. A protective mesh cover is detachably mounted on the front side of the spherical mesh cover. Specifically, the protective mesh cover can be locked to the front face of the spherical mesh cover with screws, or installed on the front face of the spherical mesh cover using a latch or snap-fit ​​mechanism, thus achieving a detachable connection between the protective mesh cover and the spherical mesh cover. Additionally, a mounting cavity is recessed inward on the back side of the spherical mesh cover. The mounting cavity has an opening and faces away from the protective mesh cover, with the opening extending towards the protective mesh cover to form a mounting port. The drive assembly is detachably mounted within the mounting cavity, and when the spherical mesh cover is separated from the drive assembly, the spherical mesh cover can be moved along a straight line, causing the spherical mesh cover to separate from the drive assembly. Therefore, when the spherical mesh cover needs cleaning, it can be disassembled independently for easy rinsing. The drive assembly includes a mounting housing and a first motor, with the mounting housing detachably connected to the mounting cavity. Furthermore, to improve the overall aesthetics of the mounting housing within the mounting cavity, its outer surface can be spherical. After assembly, the spherical surface of the mounting housing is flush with the outer spherical surface of the spherical mesh cover, forming a complete spherical structure, allowing the mounting housing to completely fill the opening of the mounting cavity. To enable the drive assembly to be installed, a mounting portion is provided on the outer side of the mounting housing, positioned close to the mounting opening. When the mounting portion is connected to the support base, it is located near the bottom side of the spherical mesh cover, and the mounting portion has a centerline A passing through the center of the spherical mesh cover. The first motor is fixedly installed inside the mounting housing and forms an integral structure with the mounting housing. The main shaft of the first motor extends into the spherical mesh cover, and the angle between the main shaft axis of the first motor and the center line A is 30° to 60°. The fan blades are detachably connected to the main shaft of the first motor.

[0004] When the circulating fan needs to be disassembled and cleaned, the user can remove the protective mesh cover and fan blades one by one, and then loosen the locking mechanism between the spherical mesh cover and the drive assembly. This allows the spherical mesh cover to be removed from the drive assembly in one direction, separating the two. Therefore, the spherical mesh cover, fan blades, and protective mesh cover can be disassembled and cleaned individually, making cleaning more convenient and thorough. The mounting part is within a 30° to 60° angle range with the main shaft of the first motor, allowing the support base to be located at the bottom of the spherical mesh cover. This reduces the distance from the air outlet surface of the spherical mesh cover to the back of the support base. The ability to disassemble the spherical mesh cover in a straight line not only makes the circulating fan structure compact and aesthetically pleasing, but also ensures balanced and stable support.

[0005] In the technical solutions disclosed in the aforementioned patent documents, during the fan assembly process, the housing needs to be connected to the drive mechanism inside the support base first, and then the drive components need to be installed. However, assembling the housing onto the support base first, and then installing the motor and other components of the drive components into the housing, results in a complicated installation operation and inconvenience for installation. Utility Model Content

[0006] The purpose of this invention is to provide an air circulator fan structure to solve the problem of inconvenient installation of existing air circulator fans.

[0007] To achieve the above objectives, this utility model provides an air circulation fan structure, including a base, a rotary drive mechanism, a rotary table, and a circulation fan main unit; the bottom of the base is provided with a support surface, the interior of the base is provided with an installation cavity, the top of the installation cavity forms a top plate, and the top plate is inclined to the support surface;

[0008] The rotary drive mechanism includes a mounting base, a drive motor, a drive gear, and a driven gear. The mounting base is located inside the top plate, and a cavity is provided on the bottom side of the mounting base. The drive gear and the driven gear are located in the cavity and mesh with each other. The drive motor is located on the bottom side of the mounting base and connected to the drive gear. A connecting shaft passing through the mounting base and the top plate is provided on the top side of the driven gear. A rotating platform is located at the end of the connecting shaft that extends out of the mounting cavity. The rotating platform includes a mounting surface perpendicular to the connecting shaft, and the mounting surface has two vertically upward-extending insertion sleeves. Two downward-extending insertion members are provided on the bottom side of the circulating fan unit, and the insertion members are inserted into the insertion sleeves.

[0009] Furthermore, the top side of the top plate is provided with an inwardly recessed cavity, and the rotating platform is placed in the cavity.

[0010] Furthermore, a gap is formed between the circulating fan main unit and the top side of the rotating platform, and a connecting hole is provided on the top side of the rotating platform, through which a locking screw passes and connects to the connecting shaft.

[0011] Furthermore, the bottom end of the plug-in sleeve is provided with a base plate, the base plate is provided with a through hole, the plug-in component is inserted into the plug-in sleeve, and the locking component passes through the through hole from the bottom side of the base plate and connects with the plug-in component, so that the rotating table and the circulating fan host form an integral whole.

[0012] Furthermore, the top plate is set at an angle of 45° to 70° to the supporting surface.

[0013] Furthermore, the upper end of the connector is rotatably and adjustablely connected to the circulating fan host.

[0014] Furthermore, the circulating fan main unit includes a mesh shell, a front mesh cover, a rear mesh cover, a motor housing, a fan motor, and fan blades; the rear side of the mesh shell has an inwardly recessed cavity, and the cavity extends to the bottom side of the mesh shell, the cavity having a front plate and two side plates; the motor housing is disposed in the cavity, the front side of the motor housing has a sleeve passing through the front plate, the sleeve is connected to a locking nut, the locking nut fixing the motor housing on the front plate; a clearance groove is formed between the motor housing and the side plates; the two sides of the motor housing have transition parts, the upper end of the plug-in is rotatably connected to the transition part; one side of the transition part has an arc-shaped plate, the inner side of the arc-shaped plate has multiple slots, the outer side of the upper end of the plug-in has an elastic limiting member, the elastic limiting member is used to snap into the slot; the fan motor is disposed in the motor housing, the fan blades are disposed on the main shaft of the fan motor, the front mesh cover is disposed at the front end of the mesh shell, and the rear mesh cover covers the opening of the cavity.

[0015] Furthermore, the side of the arc-shaped plate opposite to the slot is provided with multiple stiffening plates, which are correspondingly arranged with respect to the bottom of the slot.

[0016] Furthermore, the adapter is provided with a wire hole, and the plug-in connected to the adapter is provided with a wire groove. The wire connecting the fan motor is located in the wire groove and passes through the wire hole to connect to the fan motor.

[0017] The air circulator fan structure provided in this embodiment of the present invention has at least the following technical effects:

[0018] A plug-in sleeve is provided on the mounting surface of the rotating platform, and two downward-extending plug-in parts are provided on the bottom side of the circulating fan main unit. The plug-in parts are inserted into the plug-in sleeve, so that the circulating fan main unit and the base are assembled into a single structure, making the overall assembly of the air circulating fan simple and convenient. Attached Figure Description

[0019] To more clearly illustrate the technical solutions in the embodiments of this utility model, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0020] Figure 1 A structural diagram of the air circulation fan structure provided in the embodiment of this utility model.

[0021] Figure 2 A cross-sectional view of the air circulation fan structure provided in an embodiment of this utility model.

[0022] Figure 3 An exploded view of the air circulation fan structure provided in an embodiment of this utility model.

[0023] Figure 4 Another side view of the exploded view of the air circulation fan structure provided in the embodiment of this utility model.

[0024] Figure 5 An exploded view showing the connection between the main unit of the air circulation fan structure and the rotary table provided in this embodiment of the utility model.

[0025] Figure 6 A front view of the connection between the connector and the motor housing of the air circulation fan structure provided in this embodiment of the utility model.

[0026] Figure 7 An exploded view of the main unit of the air circulation fan structure provided in the embodiment of this utility model. Detailed Implementation

[0027] The embodiments of this utility model are described in detail below. Examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain the embodiments of this utility model, and should not be construed as limiting the utility model.

[0028] In the description of the embodiments of this utility model, it should be understood that the terms "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings. They are only for the convenience of describing the embodiments of this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0029] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of embodiments of this utility model, "a plurality of" means two or more, unless otherwise explicitly specified.

[0030] In this embodiment of the invention, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this embodiment of the invention according to the specific circumstances.

[0031] In one embodiment of the cleaning machine of this utility model, please refer to... Figures 1 to 7 The air circulator fan structure includes a base 100, a rotary drive mechanism 200, a rotary table 300, and a main unit 400. The base 100 has a support surface at its bottom and an installation cavity 101 inside. A top plate 102 is formed on top of the installation cavity 101. The top plate 102 is inclined to the support surface; preferably, the top plate 102 is at an angle of 45° to 70° to the support surface, and more preferably 60°.

[0032] Please refer to Figures 2 to 4The rotary drive mechanism 200 includes a mounting base 210, a drive motor 220, a drive gear 230, and a driven gear 240. The mounting base 210 is located inside the top plate 102, and its bottom side has a cavity. The drive gear 230 and driven gear 240 are located within the cavity and mesh with each other. The drive motor 220 is located on the bottom side of the mounting base 210 and connected to the drive gear 230. The top side of the driven gear 240 has a connecting shaft 241 that passes through the mounting base 210 and the top plate 102. A rotary table 300 is located at the end of the connecting shaft 241 that extends out of the mounting cavity 101. The rotary table 300 includes a mounting surface perpendicular to the connecting shaft 241. The mounting surface has two vertically upward-extending insertion sleeves 310. The bottom side of the circulating fan main unit 400 has two downward-extending insertion members 401, which are inserted into the insertion sleeves 310. The rotating drive mechanism 200 drives the circulating fan host 400 to rotate around the connecting shaft 241, thereby achieving wide-range air delivery.

[0033] In the air circulator structure described above, the rotary drive mechanism 200 is located on the bottom side of the top plate 102, and a connecting shaft 241 extending out of the top plate 102 is provided on the driven gear 240, while the rotary table 300 is fixed on the connecting shaft 241. A plug-in sleeve 310 is provided on the mounting surface of the rotary table 300, and two downwardly extending plug-in members 401 are provided on the bottom side of the air circulator main unit 400. The plug-in members 401 are inserted into the plug-in sleeve 310, allowing the air circulator main unit 400 and the base 100 to be assembled into a single unit, thus making the overall assembly of the air circulator simple and convenient.

[0034] Furthermore, refer to Figure 2 and Figure 3 The top side of the top plate 102 is provided with an inwardly recessed cavity, and the rotating platform 300 is placed in the cavity. This allows the rotating platform 300 to be flush with the top surface of the top plate 102.

[0035] For further details, please refer to... Figures 2 to 5 A gap exists between the top side of the circulating fan main unit 400 and the top side of the rotating platform 300. The top side of the rotating platform 300 has a connecting hole 301, through which a locking screw passes to connect to the connecting shaft 241. Specifically, in this embodiment, the rotating platform 300 and the circulating fan main unit 400 can be connected as a single unit first, and then the rotating platform 300 can be locked to the connecting shaft 241. Because a gap exists between the top side of the circulating fan main unit 400 and the rotating platform 300, the locking screw can be prevented from passing through the connecting hole 301 to connect to the connecting shaft 241.

[0036] For further details, please refer to... Figure 4The bottom end of the plug-in sleeve 310 is provided with a base plate 311, and the base plate 311 has a through hole 312. The plug-in component 401 is inserted into the plug-in sleeve 310, and the locking component passes through the through hole 312 from the bottom side of the base plate 311 and connects with the plug-in component 401, so that the rotating table 300 and the circulating fan host 400 form a whole. This makes the connection between the circulating fan host 400 and the rotating table 300 more stable and secure.

[0037] For further details, please refer to... Figure 6 The upper end of the connector 401 is rotatably and adjustablely connected to the circulating fan host 400, thereby adjusting the angle of the air outlet of the circulating fan host 400.

[0038] For further details, please refer to... Figure 6 and Figure 7 The circulating fan main unit 400 includes a mesh shell 410, a front mesh cover 420, a rear mesh cover 430, a motor housing 440, a fan motor 450, and fan blades 460. The mesh shell 410 has an inwardly recessed cavity 411 on its rear side, extending to the bottom side of the mesh shell 410. The cavity 411 has a front plate 412 and two side plates 413. The motor housing 440 is disposed within the cavity 411. The front side of the motor housing 440 has a sleeve 441 passing through the front plate 412. The sleeve 441 is connected to a locking nut 442, which secures the motor housing 440 to the front plate 412. A clearance groove is formed between the motor housing 440 and the side plates 413. The motor housing 440 has adapter portions 443 on both sides, and the upper end of the connector 401 is rotatably connected to the adapter portion 443. One side of the adapter portion 443 has an arc-shaped plate 444, and multiple slots 445 are distributed on the inner side of the arc-shaped plate 444. An elastic limiting member 402 is provided on the outer side of the upper end of the connector 401. The elastic limiting member 402 is used to engage with the slots 445, thus limiting the connector 401. Furthermore, when rotating the circulating fan main unit 400, the elastic limiting member 402 can deform to avoid collisions, thereby engaging with another slot 445, thus adjusting the angle of the circulating fan assembly 400. The fan motor 450 is located inside the motor housing 440, the fan blades 460 are located on the main shaft of the fan motor 450, the front mesh cover 420 is located at the front end of the mesh shell 410, and the rear mesh cover 430 covers the opening of the cavity 411.

[0039] For further details, please refer to... Figure 6 The curved plate 444 also has multiple stiffening plates 446 on the side opposite to the slot 445, and the stiffening plates 446 are correspondingly set to the bottom of the slot 445. Therefore, the overall strength of the curved plate 444 can be increased, and problems such as deformation of the curved plate 444 can be avoided.

[0040] For further details, please refer to... Figure 5An adapter 443 is provided with a wire hole, and a connector 401 connected to the adapter 443 is provided with a wire groove 403. The wire connecting the fan motor 450 is located in the wire groove 403 and passes through the wire hole to connect with the fan motor 450.

[0041] Furthermore, a wire hole can also be provided on the top plate 102, so that the wire connected to the circulating fan host 400 passes through the top plate 102 from the base 100 and then connects to the circulating fan host 400.

[0042] The above are merely preferred embodiments of the present utility model and are not intended to limit the present utility model. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. An air circulation fan structure, characterized in that, It includes a base, a rotary drive mechanism, a rotating table, and a circulating fan main unit; the bottom of the base is provided with a support surface, the interior of the base is provided with an installation cavity, the top of the installation cavity forms a top plate, and the top plate is inclined to the support surface; The rotary drive mechanism includes a mounting base, a drive motor, a drive gear, and a driven gear; The mounting base is located inside the top plate, and a cavity is provided on the bottom side of the mounting base. The driving gear and the driven gear are located in the cavity and mesh with each other. The driving motor is located on the bottom side of the mounting base and connected to the driving gear. A connecting shaft passing through the mounting base and the top plate is provided on the top side of the driven gear. A rotating platform is located at the end of the connecting shaft that extends out of the mounting cavity. The rotating platform includes a mounting surface perpendicular to the connecting shaft, and the mounting surface has two vertically upward-extending insertion sleeves. Two downward-extending insertion members are provided on the bottom side of the circulating fan unit, and the insertion members are inserted into the insertion sleeves.

2. The air circulation fan structure according to claim 1, characterized in that: The top side of the top plate has an inwardly recessed cavity, and the rotating platform is placed in the cavity.

3. The air circulator fan structure according to claim 1, characterized in that: A gap is formed between the circulating fan main unit and the top side of the rotating platform. The top side of the rotating platform is provided with a connecting hole, and a locking screw passes through the connecting hole to connect with the connecting shaft.

4. The air circulation fan structure according to claim 3, characterized in that: The bottom end of the plug sleeve is provided with a base plate, and the base plate is provided with a through hole. The plug is inserted into the plug sleeve, and the locking member passes through the through hole from the bottom side of the base plate and connects with the plug, so that the rotating table and the circulating fan host form a whole.

5. The air circulation fan structure according to any one of claims 1 to 4, characterized in that: The top plate is set at an angle of 45° to 70° to the supporting surface.

6. The air circulation fan structure according to any one of claims 1 to 4, characterized in that: The upper end of the connector is rotatably and adjustablely connected to the circulating fan host.

7. The air circulator fan structure according to claim 6, characterized in that: The circulating fan main unit includes a mesh shell, a front mesh cover, a rear mesh cover, a motor housing, a fan motor, and fan blades. The rear side of the mesh shell has an inwardly recessed cavity extending to the bottom side of the mesh shell. The cavity has a front plate and two side plates. The motor housing is located within the cavity. The front side of the motor housing has a sleeve passing through the front plate, and the sleeve is connected to a locking nut. The locking nut secures the motor housing to the front plate. A clearance groove is formed between the motor housing and the side plates. The motor housing has transition portions on both sides, and the upper end of a connector is rotatably connected to the transition portion. One side of the transition portion has an arc-shaped plate with multiple slots distributed on its inner side. The upper outer side of the connector has an elastic limiting member for engaging with the slots. The fan motor is located within the motor housing, and the fan blades are mounted on the main shaft of the fan motor. The front mesh cover is located at the front end of the mesh shell, and the rear mesh cover closes the opening of the cavity.

8. The air circulator fan structure according to claim 7, characterized in that: The arc-shaped plate is also provided with a plurality of stiffening plates on the side opposite to the slot, and the stiffening plates are provided corresponding to the bottom of the slot.

9. The air circulator fan structure according to claim 7, characterized in that: The adapter is provided with a wire hole, and the plug-in connected to the adapter is provided with a wire groove. The wire connecting the fan motor is located in the wire groove and passes through the wire hole to connect to the fan motor.

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