A top and bottom swing table circulating fan

Abstract

The utility model belongs to air circulation fan technical field especially relates to up and down swing desktop circulating fan, including base, support seat, motor shell, screen cover, fan motor, fan blade and swing drive mechanism, support seat is located on the base, and support seat includes two upwardly extending support arm, and motor shell rotationally connects between two support arms, fan motor is located in the motor shell, and the main shaft of fan motor passes through the motor shell, and the fan blade is located on the main shaft of fan motor, one side of motor shell extends to the rear and has the installation portion, swing drive mechanism is connected on the installation portion, and swing drive mechanism still connects a support arm, is used for driving motor shell to swing up and down around the rotary connection position of support arm, motor shell is located in the screen cover, and motor shell is connected as an organic whole with screen cover, and swings up and down together with motor shell. The swing drive mechanism of this up and down swing desktop circulating fan does not exist the space of occupying motor shell and support arm connection, and therefore the air duct in the screen cover will not be influenced by swing drive mechanism.

Description

Technical Field

[0001] This utility model belongs to the field of air circulation technology, and in particular relates to a desktop circulating fan that swings up and down. 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 invention patent application CN119435439A discloses a wireless inductively powered air circulator fan, including a fan assembly, a base, a drive unit, and a power supply unit. The base includes a fixed seat and a rotating seat rotatably connected to the fixed seat, with the fan assembly mounted on the rotating seat. The drive unit is located inside the base and drives the rotating seat to rotate along the end face of the fixed seat. The power supply unit is electrically connected to the fan assembly and provides starting power to the fan assembly. It includes an electromagnetic transmitting component and an electromagnetic receiving component. The electromagnetic transmitting component is located within the fixed seat and includes an excitation coil and an excitation control board electrically connected to each other. The excitation control board is connected to a power source and transmits current to the excitation coil to generate a magnetic field. The electromagnetic receiving component is correspondingly located within the rotating seat and includes an induction coil that cuts magnetic field lines and an induction control board electrically connected to the induction coil. The induction control board is electrically connected to the fan assembly and provides drive power. The drive unit propels the rotating base to achieve uninterrupted, dead-angle-free 360° rotation along the surface of the fixed base. Simultaneously, based on the principle of electromagnetic induction, a wireless inductive power supply method is used to power the fan assembly. This allows the fan to rotate without the need for a power cord, thus eliminating the interference from the power cord that would prevent the rotating base from achieving 360° rotation during its rotational motion, achieving truly uninterrupted, dead-angle-free 360° rotation. The fan assembly includes a housing and a fan unit. The housing has an internal mounting cavity and ventilation windows on both sides. The fan unit is housed within the mounting cavity. A motor drives the fan blades to rotate, thereby driving rapid airflow to deliver air. A oscillating motor is connected to the housing / support frame, driving the housing to oscillate back and forth around the axis of a rotating component. The rotating component can be a shaft or a rotating flange, enabling a rotatable connection between the housing and the support frame. The oscillating motor can be fixedly mounted on the support frame or the housing, with its output shaft connected accordingly. This allows the fan assembly to oscillate vertically while the oscillating motor is in operation.

[0004] In the aforementioned patent document, a swing motor drives a fan assembly to swing up and down to sweep air. The swing motor is installed between the housing and the support frame, and is embedded within the housing. The fan unit is also directly housed within the housing. An inner ring is provided between the fan unit and the inner side of the housing, and the swing motor is located within this inner ring. This results in the swing motor occupying a significant amount of space within the housing, compressing the air duct diameter of the fan unit. To meet the required airflow of the fan unit (with the same air duct diameter), the housing volume needs to be increased, resulting in a larger fan size, increased space consumption, and higher manufacturing costs. Utility Model Content

[0005] The purpose of this invention is to provide a desktop air circulator fan that swings up and down, in order to solve the problems of existing desktop air circulator fans being large in size, taking up space, and having high manufacturing costs.

[0006] To achieve the above objectives, this utility model provides a desktop circulating fan that swings up and down, comprising a base, a support seat, a motor housing, a mesh cover, a fan motor, fan blades, and a swing drive mechanism. The support seat is disposed on the base and includes two upwardly extending support arms. Each support arm has a connecting position, and the motor housing is rotatably connected to the connecting positions of the two support arms. The fan motor is disposed inside the motor housing, with its main shaft passing through the motor housing, and the fan blades are disposed on the main shaft. A mounting portion extends rearward from one side of the motor housing, and the swing drive mechanism is fixedly connected to the mounting portion. The swing drive mechanism is also connected to one of the support arms for driving the motor housing to swing up and down around the connecting positions. The motor housing is disposed inside the mesh cover, and the motor housing and the mesh cover are integrated and swing up and down together.

[0007] Furthermore, the swing drive mechanism includes a drive motor, a gear, and a gear plate; the drive motor is located inside the mounting part, the gear is located on the main shaft of the drive motor, one end of the gear plate is fixedly connected to the support arm, and the other end is provided with gear teeth, which mesh with the gear.

[0008] Furthermore, the inner side of the support arm is provided with a first positioning part, and the end side of the toothed plate is provided with a second positioning part. The second positioning part cooperates with the first positioning part and is fixedly connected. The motor housing is provided with a positioning hole, and the positioning hole is rotatably sleeved on the first positioning part or the second positioning part.

[0009] Furthermore, the first positioning part includes a protrusion located on the inner side of the support arm, and an adapter sleeve extends from one side of the toothed plate. The adapter sleeve contains three connecting posts, and the three connecting posts form the second positioning part. The connecting posts are provided with connecting holes, and locking screws pass through the support arm and connect to the connecting holes. The positioning holes are rotatably connected to the adapter sleeve.

[0010] Furthermore, the mesh cover has an installation cavity, and the motor housing is located in the installation cavity; the two support arms extend from the bottom of the mesh cover into the installation cavity and are rotatably connected to the motor housing.

[0011] Furthermore, the front sidewall of the mounting cavity is provided with a clearance hole, and the front end of the motor housing is provided with a sleeve that passes through the clearance hole. The sleeve is provided with external threads, and a locking nut is connected to the external threads of the sleeve to fix the motor housing in the mounting cavity; the main shaft of the fan motor passes through the sleeve and extends out of the mounting cavity.

[0012] Furthermore, the mesh cover includes a middle frame, a front mesh, a rear mesh shell, and a rear mesh cover; the mounting cavity is located inside the rear mesh shell, and the rear mesh cover covers the opening of the mounting cavity; the middle frame is located at the front end of the rear mesh shell, and the inner ring of the middle frame forms an air duct; the front mesh covers the opening of the middle frame.

[0013] Furthermore, the opening of the mounting cavity extends to the bottom of the rear mesh cover, and the rear mesh cover is provided with a guide groove to avoid the support arm.

[0014] Furthermore, the base is provided with a plug-in slot, and the lower end of the support arm is inserted into the plug-in slot.

[0015] Furthermore, the inner side of the support arm is provided with a wire groove, and the connection position where the support arm is rotatably connected to the motor housing is provided with a wire hole. The wire extends from the bottom end of the support arm and exits through the wire hole to connect with the swing drive mechanism and the fan motor.

[0016] Furthermore, an arc-shaped limiting groove is provided on one side of the motor housing, and the center of the arc-shaped limiting groove coincides with the axis of the swing of the motor housing; a guide post is provided on one side of the toothed plate that extends into the arc-shaped limiting groove.

[0017] Furthermore, the mounting part includes a side plate of the motor housing, and a support column extends from the inner side of the side plate; the motor housing also includes a rear cover, and a support plate is provided on the inner side of the rear cover, and the swing drive mechanism connects the support column and the support plate.

[0018] The above-mentioned technical solutions of one or more of the up-and-down swinging desktop circulating fan provided in this embodiment of the utility model have at least the following technical effects: The fan motor is housed within a motor housing, which is directly and rotatably mounted between the two support arms. The oscillation drive mechanism is located on one side of the rearward-extending mounting portion of the motor housing and is connected to the support arms. Therefore, the motor housing can be driven to oscillate up and down via the oscillation drive mechanism. The motor housing is housed within a mesh cover and connected to it. Thus, the oscillation drive mechanism does not occupy the space connecting the motor housing and the support arms, and the airflow within the mesh cover is not affected by the oscillation drive mechanism. This eliminates the need to increase the size of the mesh cover while ensuring the fan's airflow volume, reducing space occupancy and lowering costs. 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 This is a structural diagram of the vertically swinging desktop circulating fan connection provided in an embodiment of the present invention.

[0021] Figure 2 This is a structural diagram of the back side of the vertically swinging desktop circulating fan provided in an embodiment of the present invention.

[0022] Figure 3 A cross-sectional view of a vertically swinging desktop circulating fan provided in an embodiment of this utility model.

[0023] Figure 4 This is a structural diagram showing the connection between the motor housing and the support arm of the vertically swinging desktop circulating fan provided in an embodiment of this utility model.

[0024] Figure 5 This is a back view of the connection between the motor housing and the support arm of the vertically swinging desktop circulating fan provided in this embodiment of the utility model.

[0025] Figure 6 This is a structural diagram of the other side of the connection between the motor housing and the support arm of the up-and-down swinging desktop circulating fan provided in an embodiment of this utility model.

[0026] Figure 7 The front view of the connection between the motor housing and the support arm of the up-and-down swinging desktop circulating fan provided in this embodiment of the utility model.

[0027] Figure 8 for Figure 7 AA sectional view.

[0028] Figure 9An exploded view of a vertically swinging desktop circulating fan provided in an embodiment of this utility model.

[0029] Figure 10 The structural diagram of the swing drive mechanism of the up-and-down swinging desktop circulating fan provided in the embodiment of this utility model.

[0030] Figure 11 This is a structural diagram of another embodiment of the up-and-down swinging desktop circulating fan provided in this utility model.

[0031] Figure 12 Another embodiment of the motor housing of the up-and-down swing desktop circulating fan provided in this utility model is shown in the structural diagram. Detailed Implementation

[0032] 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.

[0033] 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.

[0034] 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.

[0035] 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.

[0036] In one embodiment of the up-and-down oscillating desktop circulating fan of this utility model, please refer to... Figures 1 to 10 A desktop circulating fan that oscillates up and down includes a base 100, a support base, a motor housing 300, a mesh cover 400, a fan motor 500, fan blades 600, and an oscillation drive mechanism 700. The support base is mounted on the base 100 and includes an upwardly extending first support arm 210 and a second support arm 220. Both the first support arm 210 and the second support arm 220 have rotatable connection points, and the motor housing 300 is rotatably connected to these rotatable connection points. The fan motor 500 is housed within the motor housing 300, with its main shaft passing through the housing. The fan blades 600 are mounted on the main shaft. A mounting portion 301 extends rearward from one side of the motor housing 300. The oscillation drive mechanism 700 is fixedly connected to the mounting portion 301 and is also connected to the first support arm 210, driving the motor housing 300 to oscillate up and down around the rotatable connection points of the first support arm 210 and the second support arm 220. Specifically, the swing drive mechanism 700 uses the first support arm 210 as a fixed fulcrum. Under the driving force of the swing drive mechanism 700, the swing drive mechanism 700 acts on the motor housing 300, thereby causing the motor housing 300 to rotate around the fulcrum of the first support arm 210, realizing up-and-down swinging. The motor housing 300 is located inside the mesh cover 400, and the motor housing 300 is connected to the mesh cover 400 as a whole, and swings up and down together with the mesh cover 400.

[0037] In the above embodiment, the fan motor 500 is housed within the motor housing 300, and the motor housing 300 is directly rotatably mounted between the first support arm 210 and the second support arm 220. The swing drive mechanism 700 is located on one side of the mounting portion 301 extending rearward from the motor housing 300, and is connected to the first support arm 210. Therefore, the motor housing 300 can be driven to swing up and down via the swing drive mechanism 700. The motor housing 300 is housed within the mesh cover 400, and is connected to the mesh cover 400. Therefore, the swing drive mechanism 700 does not occupy the space connecting the motor housing 300 and the first support arm 210, and the air duct within the mesh cover 400 is not affected by the swing drive mechanism 700. Ensuring the fan's air duct size is achieved without increasing the volume of the mesh cover 400, reducing space occupancy and cost.

[0038] Furthermore, the swing drive mechanism 700 includes a drive motor 710, a gear 720, and a gear plate 730. The drive motor 710 is located inside the mounting portion 301, the gear 720 is mounted on the main shaft of the drive motor 720, one end of the gear plate 730 is fixedly connected to the first support arm 210, and the other end is provided with gear teeth 731, which mesh with the gear 720. Specifically, in this embodiment, the drive motor 710 drives the gear 720 to rotate, and the gear 720 pushes the gear plate 730. Since one end of the gear plate 730 is fixedly connected to the first support arm 210, the force applied by the drive motor 710 to the gear plate 730 is transmitted to the motor housing 300, causing the motor housing 300 to rotate up and down under the force of the drive motor 710.

[0039] Furthermore, the inner side of the first support arm 210 is provided with a first positioning part 211, and the end side of the toothed plate 730 is provided with a second positioning part 732. The second positioning part 732 cooperates with the first positioning part 211 and is fixedly connected. The motor housing 300 is provided with a positioning hole (not shown in the figure). The positioning hole is rotatably fitted onto the first positioning part 211 or the second positioning part 731, so that the motor housing 300 can rotate around the rotating connection position.

[0040] Furthermore, the first positioning part 211 includes a protrusion located inside the first support arm 210. An adapter sleeve 733 extends from one side of the toothed plate 730. Three connecting posts 734 are provided within the adapter sleeve 733, forming a second positioning part 732 between the three connecting posts 734. Each connecting post 734 has a connecting hole, through which a locking screw passes and connects to the first support arm 210, thus fixing the toothed plate 730 to the first support arm 210. The positioning hole rotatably connects to the adapter sleeve 733. In this embodiment, the positioning engagement of the connecting posts 734 with the first positioning part 211 increases the stability of the engagement, and the connection between the connecting posts 734 and the locking screw makes the structure more compact.

[0041] Reference Figures 8 to 10 During assembly, the adapter sleeve 733 passes through the positioning hole and is then locked in place by the locking screw. The inner side of the second support arm 220 is provided with a connecting part 221, and the motor housing 300 is rotatably connected to the connecting part 221.

[0042] Furthermore, please refer to Figure 4 , Figure 5 and Figure 10The drive motor 710 is a synchronous motor, and the motor housing 300 is provided with a first blocking member 310 and a second blocking member 320 on both outer sides. In this embodiment, the first blocking member 310 and the second blocking member 320 can alternately support the arm to abut, thereby limiting the range of the vertical swing angle of the motor housing 300. Specifically, when the synchronous connecting rod 720 of the drive motor 710 drives the motor housing 300 to swing vertically, when the first blocking member 310 abuts against the support arm, the drive motor 710 is subjected to a blocking force, thereby achieving reverse rotation. This cycle continues, thereby realizing the reciprocating vertical swing of the lower integral structure formed by the motor housing 300 and the mesh cover 400. The vertical swing angle of the motor housing 300 depends on the angle between the first blocking member 310 and the second blocking member 320.

[0043] For further details, please refer to... Figure 11 and Figure 12 To ensure stability during the vertical swing of the motor housing 300, an arc-shaped limiting groove 302 is provided on one side of the motor housing 300 in this embodiment, with the center of the arc-shaped limiting groove 302 coinciding with the axis of the motor housing 300's swing. A guide post 735 extending into the arc-shaped limiting groove 302 is provided on one side of the toothed plate 730. Specifically, in this embodiment, when the motor housing 300 swings vertically, the guide post 735 cooperates with the arc-shaped limiting groove 302 to limit the movement, thereby limiting the movement of the toothed plate 730 on the motor housing 300 and increasing the stability of the connection between the two.

[0044] Furthermore, in a specific embodiment where the motor housing 300 and the mesh cover 400 are assembled into a single structure, the mesh cover 400 may have a mounting cavity 401 inside, and the motor housing 300 may be disposed within the mounting cavity 401. The first support arm 210 and the second support arm 220 extend from the bottom of the mesh cover 400 into the mounting cavity 401 and are rotatably connected to the motor housing 300.

[0045] Furthermore, please refer to Figure 3 and Figure 9 The front wall of the mounting cavity 401 is provided with a clearance hole. The front end of the motor housing 300 is provided with a sleeve 320 that passes through the clearance hole (not shown in the attached drawing). The sleeve 320 is provided with external threads. A locking nut 330 is connected to the external threads of the sleeve 320 to fix the motor housing 300 in the mounting cavity 401. The main shaft of the fan motor 500 extends out of the mounting cavity 401 through the sleeve 320.

[0046] Furthermore, one embodiment of the mesh cover 400 structure. Specifically, refer to... Figure 1 , Figure 2 , Figure 3 and Figure 9The mesh cover 400 includes a middle frame 410, a front mesh 420, a rear mesh shell 430, and a rear mesh cover 440. The mounting cavity 401 is located inside the rear mesh shell 430, and the rear mesh cover 440 covers the opening of the mounting cavity 401; the middle frame 410 is located at the front end of the rear mesh shell 430, and the inner ring of the middle frame 410 forms an air duct; the front mesh cover 420 is fitted onto the opening of the middle frame 410.

[0047] Furthermore, refer to Figure 2 The opening of the mounting cavity 401 extends to the bottom of the rear mesh cover 430, and the rear mesh cover 440 is provided with a guide groove 441 to avoid the support arm. When the motor housing 300 and the mesh cover 400 swing up and down, the guide groove 441 plays a role in avoiding and guiding the first support arm 210 and the second support arm 220.

[0048] Furthermore, referring to Figure 2 The rear mesh shell 430 has a hemispherical structure, and a receiving cavity 431 is provided on the rear side of the rear mesh shell 430. A slide is provided inside the receiving cavity 431. Therefore, when an ice cube box is slid into the receiving cavity 431, it can provide a cooling effect by blowing cold air up and down. Additionally, an aromatherapy box or similar item can be placed inside the receiving cavity 431.

[0049] Furthermore, the base 100 is provided with two insertion slots, and the lower ends of the first support arm 210 and the second support arm 220 are respectively inserted into the corresponding insertion slots. This simplifies the overall structure of the fan and facilitates quick assembly of the fan.

[0050] Furthermore, refer to Figure 4 , Figure 5 and Figure 8 The inner side of the second support arm 220 is provided with a wire groove 222. The connection position where the second support arm 220 is rotatably connected to the motor housing 300 is provided with a wire hole 223. The wire extends from the bottom end of the second support arm 220 and exits through the wire hole 223 to connect with the swing drive mechanism 700 and the fan motor 500.

[0051] Furthermore, referring to Figure 11 and Figure 12 The mounting section 301 includes a side plate of the motor housing 300, and a support column 303 extends from the inner side of the side plate 301. The motor housing 300 also includes a rear cover 304, and a support plate 305 is provided on the inner side of the rear cover 304. The drive motor 710 of the swing drive mechanism 700 is connected to the support column 303 and the support plate 305. Therefore, the stability of the drive motor 710 installation can be increased.

[0052] 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. A desktop circulating fan that swings up and down, characterized in that, The device includes a base, a support seat, a motor housing, a mesh cover, a fan motor, fan blades, and a swing drive mechanism. The support seat is mounted on the base and includes two upwardly extending support arms. Each support arm has a connecting position, and the motor housing is rotatably connected to the connecting positions of the two support arms. The fan motor is located inside the motor housing, with its main shaft passing through the housing and the fan blades mounted on the shaft. A mounting portion extends rearward from one side of the motor housing, and the swing drive mechanism is fixedly connected to the mounting portion. The swing drive mechanism is also connected to one of the support arms, which drives the motor housing to swing up and down around the connecting positions. The motor housing is located inside the mesh cover and is integrally connected to the mesh cover, swinging up and down together with the motor housing.

2. The up-and-down oscillating desktop circulating fan according to claim 1, characterized in that: The swing drive mechanism includes a drive motor, a gear, and a gear plate; the drive motor is located inside the mounting part, the gear is located on the main shaft of the drive motor, one end of the gear plate is fixedly connected to the support arm, and the other end is provided with gear teeth, which mesh with the gear.

3. The up-and-down oscillating desktop circulating fan according to claim 2, characterized in that: The inner side of the support arm is provided with a first positioning part, and the end side of the toothed plate is provided with a second positioning part. The second positioning part cooperates with the first positioning part and is fixedly connected. The motor housing is provided with a positioning hole, and the positioning hole is rotatably sleeved on the first positioning part or the second positioning part.

4. The up-and-down oscillating desktop circulating fan according to claim 3, characterized in that: The first positioning part includes a protrusion located on the inner side of the support arm, and an adapter sleeve extends from one side of the toothed plate. The adapter sleeve contains three connecting posts, and the three connecting posts form the second positioning part. The connecting posts are provided with connecting holes, and locking screws pass through the support arm and connect to the connecting holes. The positioning holes are rotatably connected to the adapter sleeve.

5. The up-and-down oscillating desktop circulating fan according to any one of claims 1 to 4, characterized in that: The mesh cover has an installation cavity, and the motor housing is located in the installation cavity; the two support arms extend from the bottom of the mesh cover into the installation cavity and are rotatably connected to the motor housing.

6. The up-and-down oscillating desktop circulating fan according to claim 5, characterized in that: The front side wall of the mounting cavity is provided with a clearance hole, and the front end of the motor housing is provided with a sleeve that passes through the clearance hole. The sleeve is provided with external threads, and a locking nut is connected to the external threads of the sleeve to fix the motor housing in the mounting cavity; the main shaft of the fan motor passes through the sleeve and extends out of the mounting cavity.

7. The up-and-down oscillating desktop circulating fan according to claim 5, characterized in that: The mesh cover includes a middle frame, a front mesh, a rear mesh shell, and a rear mesh cover; the mounting cavity is located inside the rear mesh shell, and the rear mesh cover covers the opening of the mounting cavity; the middle frame is located at the front end of the rear mesh shell, and the inner ring of the middle frame forms an air duct; the front mesh covers the opening of the middle frame.

8. The up-and-down oscillating desktop circulating fan according to claim 7, characterized in that: The opening of the mounting cavity extends to the bottom of the rear mesh cover, and the rear mesh cover is provided with a guide groove to avoid the support arm.

9. The up-and-down oscillating desktop circulating fan according to claim 1, characterized in that: The base is provided with a plug slot, and the lower end of the support arm is inserted into the plug slot.

10. The up-and-down oscillating desktop circulating fan according to claim 9, characterized in that: The inner side of the support arm is provided with a wire groove, and the connection position where the support arm is rotatably connected to the motor housing is provided with a wire hole. The wire extends from the bottom end of the support arm and exits through the wire hole to connect with the swing drive mechanism and the fan motor.

11. The up-and-down oscillating desktop circulating fan according to any one of claims 2 to 4, characterized in that: The motor housing has an arc-shaped limiting groove on one side, and the center of the arc-shaped limiting groove coincides with the axis of the motor housing's swing; the toothed plate has a guide post extending into the arc-shaped limiting groove on one side.

12. The up-and-down oscillating desktop circulating fan according to claim 1, characterized in that: The mounting part includes a side plate of the motor housing, and a support column extends from the inner side of the side plate; the motor housing also includes a rear cover, and a support plate is provided on the inner side of the rear cover; the swing drive mechanism connects the support column and the support plate.

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