Head unit and fan

Abstract

This application relates to a fan head assembly and a fan. The fan head assembly includes a fan head body, a oscillating motor, and a clutch mechanism. The oscillating motor is configured to drive the fan head body to rotate around a first axis via a first transmission path and to drive the fan head body to rotate around a second axis via a second transmission path, the direction of the second axis intersecting the direction of the first axis. The clutch mechanism is configured to control the on / off state of the first and / or second transmission paths. The aforementioned fan head assembly drives the fan head body to oscillate up and down and left and right via the oscillating motor. Furthermore, the fan head assembly can also control the on / off state of the transmission path of the oscillating motor via the clutch mechanism, thereby controlling the start and stop of the oscillation in the corresponding direction. That is, the fan head assembly can achieve both bidirectional and unidirectional oscillation using only a single motor. Thus, the fan head assembly achieves the up-and-down and left-and-right oscillation functions of the fan head body with a single oscillating motor, which helps to reduce the overall power consumption of the fan and the required installation space.

Description

Technical Field

[0001] This application relates to the field of electrical technology, and in particular to a head assembly and a fan. Background Technology

[0002] Circulating fans are becoming increasingly popular due to their advantages such as more even airflow and energy saving. A circulating fan typically consists of a body and a fan head. To improve the airflow range, some circulating fans have an oscillation function, specifically including vertical oscillation and horizontal oscillation.

[0003] In related technologies, most circulating fans use two separate motors to control their vertical and horizontal oscillation functions. This results in a large number of motors, high cost, and low assembly efficiency. Given the current trend of increasingly lower product costs, this drive solution is undoubtedly expensive and lacks value. Furthermore, the large number of motors used leads to high overall power consumption, reduced energy efficiency, and ineffective energy saving. In addition, the placement of the two motors in the dual-motor drive solution requires a large space, which can easily result in a bulky appearance design. Summary of the Invention

[0004] Therefore, it is necessary to provide a head assembly and fan that can achieve left-right and up-down oscillation using a single motor to address the above problems.

[0005] A fan head assembly includes a fan head body, an oscillating motor, and a clutch mechanism. The oscillating motor is configured to drive the fan head body to rotate about a first axis via a first transmission path and to drive the fan head body to rotate about a second axis via a second transmission path, the direction of the second axis intersecting the direction of the first axis. The clutch mechanism is configured to control the on / off state of the first transmission path and / or the second transmission path.

[0006] In one embodiment, the head assembly further includes a mounting bracket, a first rotating base, and a second rotating base. The head body is rotatably mounted on the mounting bracket about the first axis. The first rotating base and the second rotating base are rotatably engaged about the second axis. The mounting bracket is mounted on the first rotating base. The second rotating base is used to fix and connect the fan body assembly. The oscillating motor is mounted on the first rotating base.

[0007] In one embodiment, the head assembly further includes a transmission mechanism disposed between the oscillating motor and the head body for forming the first transmission path; the transmission mechanism has a transmission state and a non-transmission state, and a clutch mechanism is drively connected to the transmission mechanism and configured to drive the transmission mechanism to switch between the transmission state and the non-transmission state to control the on / off state of the first transmission path.

[0008] In one embodiment, the transmission mechanism includes a rack and a transmission gear. The rack is disposed on the head body and arranged around the first axis. The transmission gear is connected to the oscillating motor and meshes with the rack.

[0009] In one embodiment, the transmission gear includes a first gear and a second gear, the first gear being configured with its axis parallel to the second axis, and the second gear being configured with its axis parallel to the first axis;

[0010] The first gear has a first conical tooth portion, the second gear has a second conical tooth portion and a second cylindrical tooth portion, the first conical tooth portion meshes with the second conical tooth portion, and the second cylindrical tooth portion meshes with the rack.

[0011] In one embodiment, the second gear has two sets of second cylindrical teeth, which are located on both sides of the first conical teeth in the axial direction.

[0012] The rack has a first tooth and a second tooth, the first tooth and the second tooth respectively meshing with two sets of second cylindrical teeth, and the first tooth and the second tooth are spaced apart in the axial direction of the second gear to form a strip-shaped clearance opening to avoid the first conical teeth.

[0013] In one embodiment, the head body includes a housing, the housing having a mounting portion that is arc-shaped and whose axis is the first axis, and the rack is mounted on the mounting portion.

[0014] In one embodiment, the mounting support has an arc-shaped mating surface, the axis of which is the first axis, and the machine head body engages with the arc-shaped mating surface through the mounting part and can slide along the arc-shaped mating surface.

[0015] In one embodiment, the head assembly further includes a support roller, the axis of which is parallel to the first axis and is disposed at the arc-shaped mating surface to provide rolling support for the mounting portion.

[0016] In one embodiment, the first gear is configured to be movable and has a driving position and a non-driving position; the clutch mechanism is drivenly connected to the first gear and configured to drive the first gear to switch between the driving position and the non-driving position;

[0017] When the first gear is in the transmission position, it meshes with the second gear, and the transmission mechanism is in the transmission state; when the first gear is in the non-transmission position, it disengages from the second gear, and the transmission mechanism is in the non-transmission state.

[0018] In one embodiment, the clutch mechanism includes an operating member and a first latch. The operating member has a driving part and a locking part. The driving part cooperates with the first gear. The operating member drives the first gear to move through the driving part. When the operating member drives the first gear to move to the transmission position and / or the non-transmission position, the locking part engages with the first latch.

[0019] In one embodiment, the operating member is configured to move in the engagement direction until the locking portion engages with the first latch; the clutch mechanism further includes a first elastic member that cooperates with the operating member and is configured to provide a driving force to drive the operating member to move in a direction opposite to the engagement direction;

[0020] The first buckle has a first guide surface, which intersects with the engagement direction and serves to guide the engagement of the first buckle.

[0021] The clutch mechanism further includes a second elastic element, and the operating element also has an unlocking part. The unlocking part is located upstream of the locking part in the engagement direction. The unlocking part has a contact surface and a second guide surface. The contact surface is located downstream of the second guide surface in the engagement direction. The unlocking part is configured to move relative to the locking part in a direction parallel to the engagement direction. The second elastic element is located between the locking part and the unlocking part and can be compressed until the contact surface abuts against the locking part. The second guide surface intersects the engagement direction and is used to generate a guide for disengaging from the first latch.

[0022] In one embodiment, the actuating member is configured to drive the first gear to move in the engagement direction, and the clutch mechanism further includes a third elastic member that engages with the first gear and is configured to provide a driving force to drive the actuating member to move in a direction opposite to the engagement direction.

[0023] In one embodiment, the head assembly further includes a housing having a mounting groove extending in a direction parallel to the engagement direction, an operating member disposed in the mounting groove and configured to be movable along the mounting groove; the operating member also has a pressing portion, at least partially located outside the housing.

[0024] And / or, the head assembly further includes a mounting base having a column extending in a direction parallel to the engagement direction and having a shaft hole therein, the gear shaft of the first gear being rotatably disposed in the shaft hole, and the third elastic element being disposed in the shaft hole and abutting against the gear shaft of the first gear.

[0025] And / or, the head assembly further includes a mounting base, the first buckle is disposed on the mounting base, and the first buckle is an annular buckle, the first elastic element is disposed inside the first buckle and abuts against the operating element.

[0026] In one embodiment, the oscillating motor has a first output shaft and a second output shaft, the first output shaft being drively connected to the head body, and the second output shaft engaging with the second rotating seat in a rotational direction around the second axis.

[0027] In one embodiment, the end section of the second output shaft is non-circular, and the second rotary seat has a mating shaft hole that mates with the end of the second output shaft;

[0028] And / or, the first rotating seat has a rotating shaft structure that extends along the direction of the second axis, and the second rotating seat has a rotating groove that mates with the rotating shaft structure; one of the rotating shaft structure and the rotating groove has a second buckle, and the other has a slot, the slot engaging with the second buckle and creating a limiting position in the direction of the second axis.

[0029] A fan, including the aforementioned head assembly.

[0030] The aforementioned fan head assembly uses a oscillating motor to drive the fan head body to oscillate up and down and left and right. Furthermore, the assembly can control the on / off state of the oscillating motor's transmission path via a clutch mechanism, thereby controlling the start and stop of oscillation in the corresponding direction. In other words, the fan head assembly can achieve both bidirectional and unidirectional oscillation using only a single oscillating motor. Thus, the fan head assembly achieves the up-and-down and left-and-right oscillation functions with a single motor, helping to reduce the overall power consumption of the fan and requiring less installation space. Attached Figure Description

[0031] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, 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 application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0032] Figure 1This is a schematic diagram of the structure of a fan with a head assembly in one embodiment of this application.

[0033] Figure 2 for Figure 1 The diagram shows the exploded structure of the fan.

[0034] Figure 3 for Figure 1 The diagram shows a cross-sectional view of the fan.

[0035] Figure 4 for Figure 3 The diagram shows an enlarged view of the fan's operating mechanism at point A when the locking part is not engaged with the first latch.

[0036] Figure 5 for Figure 4 The diagram shows an enlarged view of the fan at point B.

[0037] Figure 6 for Figure 3 The diagram shows an enlarged view of the locking part of the operating component in the fan when it is engaged with the first latch at point A.

[0038] Figure 7 for Figure 3 The diagram shows an enlarged view of the unlocking part of the fan's operating mechanism at point A when it engages with the first latch.

[0039] Figure 8 for Figure 1 The diagram shows a cross-sectional view of the fan from another angle.

[0040] Figure 9 for Figure 8 The diagram shows an enlarged view of the fan at point C.

[0041] Figure 10 for Figure 1 The diagram shows an exploded view of the fan head body.

[0042] Figure 11 for Figure 1 The diagram shows the structure of the rack in the fan.

[0043] Figure 12 for Figure 1 The diagram shows the structure of the first gear in the fan.

[0044] Figure 13 for Figure 1 The diagram shows the structure of the second gear in the fan.

[0045] Figure 14 for Figure 1 The diagram shows the structure of the drive gear in the fan.

[0046] Figure 15 for Figure 1 The diagram shows the structural schematic of the support body in the fan.

[0047] Figure 16 for Figure 1 The diagram shows the structural design of the fan housing.

[0048] Figure 17 for Figure 1 The diagram shows the structure of the outer and inner rollers in the fan.

[0049] Figure 18 for Figure 1 The diagram shows a partial structural schematic of the operating components in the fan.

[0050] Figure 19 for Figure 1 The diagram shows the structure of the locking part in the fan.

[0051] Figure 20 for Figure 1 The diagram shows the structure of the unlocking part in the fan.

[0052] Figure 21 for Figure 1 The diagram shows the structure of the first rotating base in the fan.

[0053] Figure 22 for Figure 1 The diagram shows the structure of the oscillating motor in the fan.

[0054] Figure 23 for Figure 1 The diagram shows the structure of the second rotating base of the fan cooperating with the body assembly.

[0055] Explanation of reference numerals in the attached drawings: 100, Head assembly; 10, Head body; 11, Main motor; 12, Fan blade; 13, Housing; 131, Mounting part; 1311, First screw post; 132, Decorative shell; 20, Oscillating motor; 21, Drive gear; 22, First output shaft; 23, Second output shaft; 24, Second screw hole; 30, Transmission mechanism; 31, First gear; 311, First conical tooth; 312, First cylindrical tooth; 32, Second gear 321. Second conical tooth; 322. Second cylindrical tooth; 33. Rack; 331. First screw hole; 332. First tooth; 333. Second tooth; 334. Strip-shaped clearance opening; 40. Clutch mechanism; 41. Operating element; 411. Drive unit; 412. Locking unit; 4121. Second locking surface; 4122. Third guide surface; 4123. Recessed hole; 413. Unlocking unit; 4131. Contact surface; 41311. Receiving groove; 4132 414. Pressing part; 415. Main body; 42. First buckle; 421. First guide surface; 422. First locking surface; 43. First elastic element; 44. Second elastic element; 45. Third elastic element; 51. First rotating seat; 511. Post; 512. Second screw post; 513. Rotating shaft structure; 5131. Slot; 514. Second wire hole; 52. Second rotating seat; 521. Mating shaft hole; 522. Rotating groove; 52 3. Second buckle; 524. Annular groove; 60. Assembly support; 61. Arc-shaped mating surface; 62. Support body; 621. First shaft hole; 622. Second shaft hole; 623. First wire hole; 63. Outer shell; 631. Mounting groove; 632. Gear groove; 633. Assembly groove; 64. Support roller; 641. Outer roller; 642. Inner roller; 70. Wiring; 200. Fan; 210. Body assembly; 211. Body rod; 212. Chassis. Detailed Implementation

[0056] To make the above-mentioned objectives, features, and advantages of this application more apparent and understandable, the specific embodiments of this application are described in detail below with reference to the accompanying drawings. Many specific details are set forth in the following description to provide a thorough understanding of this application. However, this application can be implemented in many other ways different from those described herein, and those skilled in the art can make similar modifications without departing from the spirit of this application. Therefore, this application is not limited to the specific embodiments disclosed below.

[0057] In the description of this application, it should be understood that if terms such as "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential" appear, these terms indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this application 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, and therefore should not be construed as a limitation of this application.

[0058] Furthermore, where the term "and / or" appears, it merely describes the relationship between related objects and indicates that three relationships can exist. For example, A and / or B can represent the relationship between A and B: A alone, A and B simultaneously, and B alone. Additionally, the character " / " in this document generally indicates an "or" relationship between the related objects before and after it. Where the terms "first" and "second" appear, these terms are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature specified with "first" or "second" may explicitly or implicitly include at least one of those features. In the description of this application, where the term "multiple" appears, "multiple" means at least two, such as two, three, four, five, etc., unless otherwise explicitly specified.

[0059] In this application, unless otherwise expressly specified and limited, the terms "installation," "connection," "joining," 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, unless otherwise expressly limited. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances.

[0060] In this application, unless otherwise expressly specified and limited, the use of descriptions such as "above" or "below" the second feature indicates that the first and second features are in direct contact or indirect contact via an intermediate medium. Furthermore, "above," "on top of," and "over" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. Similarly, "below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0061] It should be noted that if an element is referred to as being "fixed to" or "set on" another element, it can be directly on the other element or there may be an intervening element. If an element is considered to be "connected to" another element, it can be directly connected to the other element or there may be an intervening element. If so, the terms "vertical," "horizontal," "upper," "lower," "left," "right," and similar expressions used in this application are for illustrative purposes only and do not represent the only possible implementation.

[0062] Please see Figures 1 to 3 An embodiment of this application provides a head assembly 100, which includes a head body 10, a oscillating motor 20, and a clutch mechanism 40. The oscillating motor 20 is configured to drive the head body 10 to rotate around a first axis via a first transmission path and to drive the head body 10 to rotate around a second axis via a second transmission path, the direction of the second axis intersecting the direction of the first axis. The clutch mechanism 40 is configured to control the on / off state of the first transmission path and / or the second transmission path.

[0063] The head assembly 100 is used for the fan 200, which can be, but is not limited to, a circulating fan. The fan 200 also includes a body assembly 210, to which the head assembly 100 is connected. Specifically, the body assembly 210 includes a body rod 211 and a chassis 212. The head assembly 100 is connected to the top end of the body rod 211, and the chassis 212 is connected to the bottom end of the body rod 211. Understandably, to achieve its normal function, the head body 10 includes a main motor 11, fan blades 12, and a housing 13. The main motor 11 and fan blades 12 are installed inside the housing 13. The main motor 11 is connected to the fan blades 12 and drives the fan blades 12 to rotate, thereby forming an airflow.

[0064] The transmission path refers to the transmission path of the torque output by the oscillating motor 20. The oscillating motor 20 can drive the head body 10 directly or indirectly. Indirect drive means that there is a transmission mechanism 30 between the oscillating motor 20 and the head body 10. The transmission mechanism 30 is used to transmit torque and is part of the transmission path.

[0065] The direction of the second axis intersects the direction of the first axis, meaning the head body 10 can rotate in two different directions. The first axis is the first direction, which intersects the height direction of the fan 200, which is the vertical direction during normal use. The second axis is the second direction, which intersects the horizontal direction and, understandably, also intersects the first direction. For ease of understanding, the following explanation will use the first direction as the horizontal direction, specifically the left-right direction of the fan 200, and the second direction as the vertical direction.

[0066] The aforementioned head assembly 100 drives the head body 10 to oscillate up and down and left and right via the oscillating motor 20. Furthermore, the head assembly 100 can control the on / off state of the transmission path of the oscillating motor 20 via the clutch mechanism 40, thereby controlling the start and stop of oscillation in the corresponding direction. In other words, the head assembly 100 can achieve both bidirectional and unidirectional oscillation using only a single oscillating motor 20. Thus, the head assembly 100 achieves the up-and-down and left-and-right oscillation functions of the head body 10 with a single oscillating motor 20, which helps reduce the overall power consumption of the fan 200 and requires less installation space.

[0067] Please refer to the following: Figures 8 to 9 In some embodiments, the head assembly 100 further includes a mounting support 60, a first rotating seat 51, and a second rotating seat 52. The head body 10 is rotatably mounted on the mounting support 60 about a first axis. The first rotating seat 51 and the second rotating seat 52 are rotatably engaged about a second axis. The mounting support 60 is mounted on the first rotating seat 51. The second rotating seat 52 is used to fix and connect the body assembly 210 of the fan 200. The oscillating motor 20 is mounted on the first rotating seat 51.

[0068] The head body 10 rotates around a first axis to achieve up-and-down oscillation. Simultaneously, the head body 10 is indirectly mounted on a first rotating seat 51 via a mounting bracket 60. The first rotating seat 51 can rotate relative to a second rotating seat 52 around a second axis, and the second rotating seat 52 is fixed to the body rod 211 of the body assembly 210. Therefore, when the first rotating seat 51 rotates relative to the second rotating seat 52 around the second axis, the oscillation motor 20 located on the first rotating seat 51, the mounting bracket 60, and the head body 10 located on the mounting bracket 60 all rotate together to achieve left-and-right oscillation of the head body 10.

[0069] Specifically, the first rotating seat 51 and the second rotating seat 52 can form a second transmission path. The oscillating motor 20 is connected to the second rotating seat 52 so as to drive the first rotating seat 51 to rotate relative to the second rotating seat 52 around a second axis.

[0070] Thus, the oscillating motor 20 and the head body 10 are both directly or indirectly mounted on the first rotating base 51, and can rotate together around the second axis. Therefore, the oscillating motor 20 can drive the first rotating base 51 to rotate relative to the second rotating base 52, thereby realizing the left and right oscillation of the head body 10.

[0071] Furthermore, the head assembly 100 also includes a transmission mechanism 30, which is disposed between the oscillating motor 20 and the head body 10 to form a first transmission path. The transmission mechanism 30 has a transmission state and a non-transmission state. A clutch mechanism 40 is connected to the transmission mechanism 30 and configured to drive the transmission mechanism 30 to switch between the transmission state and the non-transmission state to control the on / off state of the first transmission path.

[0072] Understandably, in the transmission state, the transmission mechanism 30 connects the oscillating motor 20 and the head body 10, and the oscillating motor 20 can drive the head body 10 to rotate through the transmission mechanism 30. When the transmission mechanism 30 is in the non-transmission state, the oscillating motor 20 cannot drive the head body 10 to rotate around the first axis through the transmission mechanism 30, and the clutch mechanism 40 is used to control the state switching of the transmission mechanism 30.

[0073] Please refer to the following: Figures 10 to 11 In some embodiments, the transmission mechanism 30 includes a rack 33 and a transmission gear. The rack 33 is disposed on the head body 10 and arranged around the first axis. The transmission gear is connected to the oscillating motor 20 and meshes with the rack 33.

[0074] The transmission gear is driven to rotate by the oscillating motor 20, and when it rotates, it drives the rack 33 that meshes with it to rotate around the first axis, thereby driving the head body 10 to oscillate up and down.

[0075] Thus, the oscillating motor 20 is connected to the head body 10 through the transmission gear and rack 33, thereby driving the head body 10 to oscillate up and down.

[0076] Furthermore, the housing 13 of the head body 10 has a mounting part 131, which is arc-shaped and has the axis as the first axis. The rack 33 is mounted on the mounting part 131.

[0077] Specifically, the housing 13 also has an air inlet and an air outlet, the mounting part 131 is located facing the air inlet, the rack 33 is located on the side of the mounting part 131 facing away from the air inlet, and the meshing teeth of the rack 33 are located on the side facing away from the mounting part 131.

[0078] The rack 33 has a first screw hole 331, and the mounting part 131 has a first screw post 1311 that mates with the first screw hole 331. The two are connected by screws. In addition, the housing 13 may also include a decorative shell 132, which covers the side of the rack 33 facing away from the mounting part 131. The decorative shell 132 has a through hole, through which the meshing teeth of the rack 33 are exposed for meshing with the transmission gear.

[0079] Please refer to the following: Figures 12 to 14 In some embodiments, the output shaft of the oscillating motor 20 is arranged parallel to the second axis, and the transmission gear includes a first gear 31 and a second gear 32. The first gear 31 is configured with its axis parallel to the second axis, and the second gear 32 is configured with its axis parallel to the first axis.

[0080] The ends of the first gear 31 and the second gear 32 have gear shafts. The first gear 31 has a first conical tooth portion 311, and the second gear 32 has a second conical tooth portion 321 and a second cylindrical tooth portion 322. The first conical tooth portion 311 meshes with the second conical tooth portion 321, and the second cylindrical tooth portion 322 meshes with the rack 33.

[0081] In addition, the head assembly 100 may also include a drive gear 21, which is mounted on the output shaft of the oscillating motor 20. The first gear 31 also has a first cylindrical tooth portion 312, and meshes with the drive gear 21 through the first cylindrical tooth portion 312.

[0082] Thus, the torque output by the oscillating motor 20 can be converted into the required direction by the cooperating first gear 31 and second gear 32, and then driven by the second cylindrical tooth 322 of the second gear 32 through the rack 33 to rotate the head body 10 around the first axis.

[0083] Furthermore, the second gear 32 has two sets of second cylindrical teeth 322, which are located on both sides of the first conical teeth 311 in the axial direction. The rack 33 has a first tooth 332 and a second tooth 333, which mesh with the two sets of second cylindrical teeth 322 respectively, and the first tooth 332 and the second tooth 333 are spaced apart in the axial direction of the second gear 32 to form a strip-shaped clearance opening 334 to avoid the first conical teeth 311.

[0084] Understandably, the first tooth 332 meshes with the second cylindrical tooth 322 on one side of the second gear 32, and the second tooth 333 meshes with the second cylindrical tooth 322 on the other side of the second gear 32.

[0085] This helps to improve the transmission stability between the rack 33 and the second gear 32.

[0086] Please refer to the following: Figures 15 to 16 In some embodiments, the mounting support 60 has an arc-shaped mating surface 61, the axis of which is a first axis. The head body 10 engages with the arc-shaped mating surface 61 through the mounting part 131 and can slide along the arc-shaped mating surface 61 to rotate around the first axis.

[0087] Since the axis of the arc-shaped mating surface 61 is the first axis, the head body 10 can rotate around the first axis by sliding the mounting part 131 along the arc-shaped mating surface 61.

[0088] In this way, the machine head body 10 can achieve stable rotation relative to the mounting support 60 by sliding along the arc-shaped mating surface 61.

[0089] Specifically, the mounting bracket 60 includes a bracket body 62, a housing 63, and a limiting cover (not shown). The bracket body 62 forms an arc-shaped mating surface 61. The housing 63 is mounted on the first rotating seat 51 and can be connected to the first rotating seat 51 by screws. The top of the housing 63 has a mounting groove 631, and the bracket body 62 is disposed in the mounting groove 631. The top of the bracket body 62 can pass through the rack 33 via a strip-shaped clearance opening 334 and engage with the mounting part 131. In addition, the top of the housing 63 can also form a gear groove 632, and a second gear 32 is installed in the gear groove 632. The limiting cover is disposed on the arc-shaped mating surface 61 of the bracket body 62, and the mounting part 131 is at least partially located between the bracket body 62 and the limiting cover to limit the mounting part 131 between the two and prevent the machine head body 10 from detaching.

[0090] Please refer to the following: Figure 17 Furthermore, the mounting support 60 also includes a support roller 64, the axial direction of which is parallel to the first axis. The support roller 64 is located on the support body 62 and at the arc-shaped mating surface 61, and the rolling support mounting part 131.

[0091] Thus, the support roller 64 can support the mounting part 131 and make it slide more smoothly along the arc-shaped mating surface 61, which helps the machine head body 10 to swing up and down.

[0092] Specifically, the support roller 64 includes an outer roller 641 and an inner roller 642. The support body 62 has a first shaft hole 621 and a second shaft hole 622. The outer roller 641 is installed on the support body 62 through the first shaft hole 621, and the inner roller 642 is installed on the support body 62 through the second shaft hole 622.

[0093] Please refer to the following: Figures 4 to 7In some embodiments, the first gear 31 is configured to be movable and has a driving position and a non-driving position. A clutch mechanism 40 is drively connected to the first gear 31 and configured to drive the first gear 31 to switch between the driving and non-driving positions. When the first gear 31 is in the driving position, it engages with the second gear 32, and the transmission mechanism 30 is in a driving state. When the first gear 31 is in the non-driving position, it disengages from the second gear 32, and the transmission mechanism 30 is in a non-driving state.

[0094] Thus, the clutch mechanism 40 only needs to drive the first gear 31 to switch between the transmission position and the non-transmission position to control the transmission mechanism 30 to switch between the transmission state and the non-transmission state, which is simple and reliable.

[0095] Please refer to the following: Figures 18 to 19 Furthermore, the clutch mechanism 40 includes an operating member 41 and a first latch 42. The operating member 41 has a driving part 411 and a locking part 412. The driving part 411 cooperates with the first gear 31, and the operating member 41 drives the first gear 31 to move through the driving part 411. When the operating member 41 drives the first gear 31 to the transmission position and / or the non-transmission position, the locking part 412 engages with the first latch 42. Specifically, the first gear 31 may have a mating hole, and part of the driving part 411 is inserted into the hole.

[0096] Understandably, the first latch 42 is fixed relative to the second gear 32. After the locking part 412 engages with the first latch 42, it can limit the operation part 41, and the first gear 31 is also fixed relative to the second gear 32, so that the first gear 31 can be stably in the transmission position and / or non-transmission position. In addition, the limitation caused by the engagement of the first latch 42 can be overcome by external force and released.

[0097] Thus, the user can drive the first gear 31 to move through the operating element 41, and the first latch 42 enables the first gear 31 to remain in the transmission position and / or non-transmission position after the user removes the external force.

[0098] In some embodiments, the operating member 41 is configured to be able to engage in the engagement direction (e.g., Figure 4 The clutch mechanism 40 moves (in the X direction shown) to the locking part 412 and engages with the first latch 42. The clutch mechanism 40 also includes a first elastic element 43, which cooperates with the operating element 41 and is configured to provide a driving force to drive the operating element 41 to move in the opposite direction to the engagement direction.

[0099] Specifically, when the operating member 41 drives the first gear 31 to move to the non-transmission position, the locking part 412 engages with the first buckle 42, and one end of the locking part 412 may have a recess 4123 for assembling the first elastic member 43.

[0100] Thus, the operating member 41 can move in the engagement direction under the drive of an external force, so that it engages with the first latch 42 through the locking part 412, and moves in the opposite direction to the engagement direction under the drive of the first elastic member 43, so that it can return to the initial position after contact engagement.

[0101] Furthermore, the first latch 42 has a first guide surface 421, which intersects with the engagement direction and is used to guide the latch into the first latch 42.

[0102] Understandably, the first latch 42 can undergo elastic deformation. Thus, the locking part 412, guided by the first guide surface 421, can press and engage with the first latch 42.

[0103] Please refer to the following: Figure 20 Furthermore, the clutch mechanism 40 also includes a second elastic member 44, and the operating member 41 further has an unlocking part 413. The unlocking part 413 is located upstream of the locking part 412 in the engagement direction. The unlocking part 413 has a contact surface 4131 and a second guide surface 4132. The contact surface 4131 is located downstream of the second guide surface 4132 in the engagement direction. The unlocking part 413 is configured to move relative to the locking part 412 in a direction parallel to the engagement direction. The second elastic member 44 is located between the locking part 412 and the unlocking part 413 and can be compressed until the contact surface 4131 abuts against the locking part 412. The second guide surface 4132 intersects the engagement direction and serves to guide the disengagement from the first latch 42.

[0104] The contact surface 4131 of the unlocking part 413 or the surface of the locking part 412 facing the unlocking part 413 may have a receiving groove 41311. The receiving groove 41311 is used to receive the second elastic member 44 located between the unlocking part 413 and the locking part 412, so that the unlocking part 413 and the locking part 412 abut against each other. For ease of understanding, the process of the operating member 41 engaging with the first buckle 42 is briefly explained below:

[0105] When the locking part 412 of the operating member 41 is not engaged with the first latch 42, it is located upstream of the first latch 42 in the engagement direction, and the unlocking part 413 is spaced apart from the locking part 412 under the action of the second elastic member 44. When the operating member 41 is subjected to external force and moves in the engagement direction, it compresses the first elastic member 43, and the locking part 412, under the action of the first guide surface 421, squeezes and engages with the first latch 42. At this time, the first gear 31 is in a non-transmission position, and the transmission mechanism 30 is in a non-transmission state. Based on this, an external force is continued to be applied to the operating member 41, driving it to continue moving in the engagement direction and continuing to compress the first elastic member 43 until the unlocking part 413, under the action of the first guide surface 421, causes the second guide surface 4132 to engage with the first latch 42. At this time, the external force is removed, and under the action of the first elastic member 43, the locking part 412 moves in the opposite direction of the engagement direction to abut against the unlocking part 413. The locking part 412 and the unlocking part 413 form a whole and are driven by the first elastic member 43 together. Under the guidance of the second guide surface 4132, they break open and disengage from the first latch 42, allowing the operating member 41 to return to the initial position.

[0106] In this way, the user can switch the transmission mechanism 30 to the non-transmission state by moving the drive operating member 41 in the engagement direction, and can continue to move the drive operating member 41 in the engagement direction to switch the transmission mechanism 30 back to the transmission state.

[0107] Specifically, the first latch 42 also has a first locking surface 422, which is located downstream of the first guide surface 421 in the engagement direction. The locking part 412 has a second locking surface 4121, and both the first locking surface 422 and the second locking surface 4121 are perpendicular to the engagement direction. When the locking part 412 engages with the first latch 42, it moves until the first locking surface 422 and the second locking surface 4121 come into contact, thus achieving engagement between the locking part 412 and the first latch 42.

[0108] Understandably, the second guide surface 4132 can cover the second locking surface 4121. In other words, the second guide surface 4132 can fully block the second locking surface 4121 relative to the first locking surface 422 of the first buckle 42, so as to guide the locking part 412 and prevent its second locking surface 4121 from abutting against the first locking surface 422 and engaging.

[0109] Thus, the first locking surface 422 abuts against the second locking surface 4121, thereby creating an engaging effect between the locking part 412 and the first buckle 42, which limits the operation member 41 in the opposite direction to the engaging direction.

[0110] Furthermore, the locking part 412 may also have a third guide surface 4122, which is located downstream of the second locking surface 4121 in the engagement direction, and all third guide surfaces 4122 intersect the engagement direction. The third guide surface 4122 also provides guidance for the locking part 412 to engage with the first latch 42, and the angle of the third guide surface 4122 may be consistent with the angle of the first guide surface 421 so that the two can cooperate and guide each other.

[0111] In some embodiments, the operating member 41 is configured to drive the first gear 31 to move in the engagement direction, and the clutch mechanism 40 further includes a third elastic member 45, which engages with the first gear 31 and is configured to provide a driving force to drive the operating member 41 to move in the opposite direction to the engagement direction.

[0112] Understandably, the operating element 41 can push the first gear 31 to move under the action of an external force, and push it to the non-transmission position. The third elastic element 45 is used to generate a force in the opposite direction, so as to push the first gear 31 in the opposite direction when the external force is removed, and to reach the transmission position.

[0113] Thus, the operating member 41 only needs to be able to push the first gear 31 to move in a single direction, and the third elastic member 45 can drive the first gear 31 back to the transmission position after the user removes the external force and the operating member 41 disengages from the first latch 42.

[0114] Furthermore, the first gear 31 is connected to the oscillating motor 20 in a transmission connection. When the first gear 31 is in the transmission position, the second conical tooth 321 meshes with the first conical tooth 311. When the first gear 31 is in the non-transmission position, the second conical tooth 321 separates from the first conical tooth 311.

[0115] Please refer to the following: Figure 21 In some embodiments, the head assembly 100 further includes a mounting base having a column 511 extending in a direction parallel to the engagement direction and having a shaft hole therein. The gear shaft of the first gear 31 is rotatably disposed in the shaft hole, and a third elastic member 45 is disposed in the shaft hole and abuts against the gear shaft of the first gear 31. The mounting base may be a first rotating seat 51.

[0116] Thus, the mounting base provides a mounting position for the first gear 31 and the third elastic element 45, and enables the first gear 31 to move in a direction parallel to the engagement direction. The first elastic element 43, the second elastic element 44, and the third elastic element 45 can all be, but are not limited to, springs.

[0117] In some embodiments, the first buckle 42 is disposed on the mounting base, and the first buckle 42 is an annular buckle. The first elastic member 43 is disposed inside the first buckle 42 and abuts against the operating member 41.

[0118] Thus, the mounting base provides a stable mounting position for the first buckle 42 and the first elastic member 43, and also facilitates the engagement of the operating member 41 with the annular buckle. Correspondingly, the cross-sections of the locking part 412 and the unlocking part 413 are generally annular or circular.

[0119] In some embodiments, the housing 63 further has a mounting groove 633 extending in a direction parallel to the engagement direction, and an operating member 41 is disposed in the mounting groove 633 and configured to be movable along the mounting groove 633. The operating member 41 also has a pressing portion 414, which is at least partially located outside the housing 63.

[0120] The operating component 41 may further include a main body 415, which is fitted into the mounting groove 633. The unlocking part 413 can be sleeved on the main body 415. The top end of the main body 415 is a pressing part 414, and the bottom end abuts against the locking part 412. The driving part 411 is connected to the main body 415. Specifically, when the first gear 31 is in the transmission position, the operating component 41 is in the initial position, and the driving part 411 abuts against the lower edge of the mounting groove 633 of the housing 63 to prevent the operating component 41 from continuing to move in the opposite direction to the engagement direction.

[0121] In this way, the user can drive the operating unit to move in the engaging direction by pressing the pressing part 414.

[0122] Please refer to the following: Figures 22 to 23 In some embodiments, the oscillating motor 20 has a first output shaft 22 and a second output shaft 23. The first output shaft 22 is connected to the head body 10, and the second output shaft 23 is anti-rotatingly engaged with the second rotating seat 52 in the direction of rotation around the second axis.

[0123] The oscillating motor 20 is a dual-axis motor, and both output shafts can be parallel to the second axis. The drive gear 21 is sleeved on the first output shaft 22 of the oscillating motor 20. The first rotating base 51 has a mounting position for mounting the oscillating motor 20, and the oscillating motor 20 has a second screw hole 24. The first rotating base 51 has a second screw post 512 that mates with the second screw hole 24. The oscillating motor 20 is fixed to the first rotating base 51 by screws through the second screw hole 24 and the screw post. In addition, the first rotating base 51 also has a column 511 for rotatably mounting the second gear 32.

[0124] The second output shaft 23 is anti-rotationally engaged with the second rotating seat 52. Since the second rotating seat 52 is fixed on the body rod 211, when the second output shaft 23 outputs torque, a reaction force is generated, which drives the oscillating motor 20 to drive the first rotating seat 51 to rotate, thereby driving the assembly support 60 and the head body 10 to rotate around the second axis.

[0125] Thus, the oscillating motor 20 can drive the up-and-down oscillation and the left-and-right oscillation respectively through two output shafts.

[0126] Furthermore, the end section of the second output shaft 23 is non-circular, and the second rotary seat 52 has a mating shaft hole 521 that mates with the end of the second output shaft 23. Understandably, the mating shaft hole 521 is non-circular and mates with the end of the second output shaft 23.

[0127] Specifically, the end section of the first output shaft 22 is also non-circular, and the ends of both the first output shaft 22 and the second output shaft 23 can be flat. Correspondingly, the mating shaft hole 521 is also flat. Similarly, the drive gear 21 has a flat shaft hole, and the end of the first output shaft 22 is inserted into the shaft hole of the drive gear 21 to achieve a non-rotational fit between the two.

[0128] Thus, by inserting the end of the second output shaft 23 into the mating shaft hole 521, a non-rotational fit between the second output shaft 23 and the second rotating seat 52 can be achieved.

[0129] Furthermore, the first rotating seat 51 has a rotating shaft structure 513 extending along the direction of the second axis, and the second rotating seat 52 has a rotating groove 522 that mates with the rotating shaft structure 513. One of the rotating shaft structure 513 and the rotating groove 522 has a second latch 523, and the other has a slot 5131. The slot 5131 engages with the second latch 523, creating a limiting position in the direction of the second axis.

[0130] Specifically, the rotating shaft structure 513 is hollow, the rotating groove 522 is arranged around the mating shaft hole 521, and the second output shaft 23 passes through the rotating shaft structure 513 and mates with the mating shaft hole 521.

[0131] Thus, the first rotating seat 51 can rotate and engage with the second rotating seat 52 around the second axis through the rotating shaft structure 513, and the engagement of the second buckle 523 with the slot 5131 can reduce the probability of abnormal disengagement between the two.

[0132] Furthermore, the surface of the second rotating seat 52 that mates with the first rotating seat 51 has an annular groove 524. The annular groove 524 is formed around the second axis and can constrain and guide the rotation of the first rotating seat 51.

[0133] In some embodiments, the support body 62 has a first wire passage hole 623, and the first rotating seat 51 has a second wire passage hole 514. The head assembly 100 also includes a wiring 70, which passes through the first wire passage hole 623 and the second wire passage hole 514 and is connected to the power plug at the lower end. The wiring 70 adopts an eccentric routing to maximize the use of space for the transmission mechanism 30, clutch mechanism 40, etc. The wiring is not bent and the operation is reliable.

[0134] This application also provides a fan 200, including the aforementioned head assembly 100. It can be understood that, in order to achieve its normal function, the fan 200 also includes a body assembly 210, to which the head assembly 100 is connected.

[0135] The assembly process of fan 200 is briefly described below:

[0136] During the assembly process, the outer roller 641 is first assembled into the first shaft hole 621 of the support body 62, then the inner roller 642 is assembled into the second shaft hole 622 of the support body 62, then the support body 62 is passed through the strip-shaped clearance 334 of the rack 33, then the rack 33 and the mounting part 131 are fixedly connected by screwing using the first screw hole 331 of the rack 33 and the first screw post 1311 of the mounting part 131, and finally the decorative shell 132 is installed, thus completing the assembly of the machine head body 10.

[0137] Subsequently, the second gear 32 is assembled into the gear groove 632 in the housing 63 via the gear shaft. Then, the support body 62 is assembled into the mounting groove 631 of the housing 63, and the housing 63 is fixed by screws. Next, the operating member 41 is assembled into the mounting groove 633 of the housing 63 via the main body 415, with the pressing part 414 exposed. The unlocking part 413 is fitted onto the main body 415 of the operating member 41. Then, the second elastic member 44 is assembled into the receiving groove 41311 in the unlocking part 413. Next, the locking part 412 is assembled onto one end of the main body 415 by welding or screws. Finally, the first elastic member 43 is assembled into the recess 4123 of the locking part 412, thereby completing the main assembly work of the clutch mechanism 40.

[0138] Then, the third elastic element 45 is assembled into the column 511 of the first rotating base 51, and the first gear 31 is also assembled into the column 511 of the first rotating base 51 via the gear shaft, abutting against the third elastic element 45, thereby completing the assembly of the first gear 31 and the second gear 32. Next, the second screw hole 24 in the oscillating motor 20 is fixedly connected to the second screw post 512 in the first rotating base 51 by screwing. Next, the drive gear 21 is assembled into the first output shaft 22 in the oscillating motor 20 through its shaft hole. Finally, the first rotating base 51 is assembled into the housing 63 by screwing, and the drive part 411 of the operating element 41 engages with the first gear 31.

[0139] Finally, the rotating groove 522 in the second rotating seat 52 is inserted into the rotating shaft structure 513 of the first rotating seat 51. The rotating groove 522 is provided with a second buckle 523, which is engaged with the rotating shaft structure 513. At the same time, the second output shaft 23 in the oscillating motor 20 is inserted into the mating shaft hole 521 of the second rotating seat 52, thereby completing the assembly of the entire head assembly 100. The head assembly 100 can be further installed on the body assembly 210 through the second rotating seat 52.

[0140] When the user activates the oscillation function of the aforementioned fan 200, the first output shaft 22 of the oscillation motor 20 drives the drive gear 21 to rotate. The drive gear 21 meshes with the first cylindrical tooth 312 of the first gear 31, thereby driving the first gear 31 to run. The first conical tooth 311 of the first gear 31 meshes with the second conical tooth 321 of the second gear 32, thereby driving the second gear 32 to run. The second cylindrical tooth 322 on the second gear 32 meshes with the rack 33, thereby driving the head body 10 to oscillate up and down. At the same time, the reaction force generated by the interaction between the second output shaft 23 of the oscillation motor 20 and the second rotating seat 52 can drive the head body 10 to rotate through the oscillation motor 20, the first rotating seat 51, the outer casing 63, and the support body 62, thus achieving left and right oscillation.

[0141] Furthermore, when the user only wants to activate the left and right oscillation, the operating member 41 needs to be pressed by the pressing part 414. The third guide surface 4122 of the locking part 412 contacts the first guide surface 421 of the first latch 42, causing the first latch 42 to spring outward until the second locking surface 4121 of the locking part 412 touches the first locking surface 422 of the first latch 42. At this time, the operating member 41 will also drive the first gear 31 to move downward, so that the first gear 31 and the second gear 32 will separate. Thus, the second gear 32 will stop operating, the up and down oscillation will stop, and only the left and right oscillation will be activated. When the user wants to start the up-and-down oscillation, they only need to press the operating member 41 again through the pressing part 414. At this time, the first latch 42 will be deformed outward by the unlocking part 413. Then, the first locking surface 422 of the first latch 42 will contact the second guide surface 4132 of the unlocking part 413. Then, when the operating member 41 continues to be pressed down, the second elastic member 44 will continue to be compressed into the receiving groove 41311 of the unlocking part 413 until the unlocking part 413 contacts the locking part 412 and the pressing pressure is released. At this moment, under the action of the first elastic member 43, the operating member 41 will move upward until the driving part 411 of the operating member 41 contacts the lower edge of the mounting groove 633 of the outer shell 63, and then it will return to the initial position. During this process, the first gear 31 moves upward and meshes with the second gear 32, and the up-and-down oscillation resumes operation.

[0142] The fan 200 features an integrated design for its up, down, left, and right oscillation functions. The oscillation mechanism is integrated into the body, lowering the overall center of gravity. This results in a short distance between the center of gravity and the oscillation mechanism, reducing the resistance required for left and right oscillation and ensuring smooth operation. Additionally, the center of gravity at the fan head is a certain distance from the second gear 32, requiring minimal driving force. This is sufficient to drive simultaneous oscillation in both directions using a single oscillation motor 20.

[0143] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0144] The embodiments described above are merely illustrative of several implementation methods of this application, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the patent application. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this application, and these all fall within the protection scope of this application. Therefore, the protection scope of this patent application should be determined by the appended claims.

Claims

1. A fan head assembly, characterized in that, The head assembly includes a head body (10), a oscillating motor (20), and a clutch mechanism (40). The oscillating motor (20) is configured to drive the head body (10) to rotate around a first axis via a first transmission path and to drive the head body (10) to rotate around a second axis via a second transmission path, wherein the direction of the second axis intersects the direction of the first axis. The clutch mechanism (40) is configured to control the on / off state of the first transmission path and / or the second transmission path. The head assembly further includes a transmission mechanism (30), which is located between the oscillating motor (20) and the head body (10) to form the first transmission path. The transmission mechanism (30) includes a rack (33) and a transmission gear. The rack (33) is located on the head body (10) and is arranged around the first axis. The transmission gear is connected to the oscillating motor (20) and meshes with the rack (33). The transmission gear includes a first gear (31) and a second gear (32). The first gear (31) is configured to be movable and has a transmission position and a non-transmission position. When the first gear (31) is in the transmission position, it meshes with the second gear (32). When the first gear (31) is in the non-transmission position, it disengages from the second gear (32). The clutch mechanism (40) includes an operating member (41) and a first latch (42). The operating member (41) has a driving part (411) and a locking part (412). The driving part (411) cooperates with the first gear (31). The operating member (41) drives the first gear (31) to move through the driving part (411). When the operating member (41) drives the first gear (31) to move to the transmission position and / or the non-transmission position, the locking part (412) engages with the first latch (42). The operating member (41) is configured to move in the engagement direction until the locking part (412) engages with the first latch (42); the clutch mechanism (40) further includes a first elastic member (43), which cooperates with the operating member (41) and is configured to provide a driving force to drive the operating member (41) to move in a direction opposite to the engagement direction; The first buckle (42) has a first guide surface (421) which intersects with the engagement direction and is used to generate a guide for engaging the first buckle (42); The clutch mechanism (40) further includes a second elastic element (44), and the operating element (41) also has an unlocking part (413). The unlocking part (413) is located upstream of the locking part (412) in the engagement direction. The unlocking part (413) has a contact surface (4131) and a second guide surface (4132). The contact surface (4131) is located downstream of the second guide surface (4132) in the engagement direction. The unlocking part (413) is configured to move relative to the locking part (412) in a direction parallel to the engagement direction. The second elastic element (44) is located between the locking part (412) and the unlocking part (413) and can be compressed until the contact surface (4131) abuts against the locking part (412). The second guide surface (4132) intersects the engagement direction and is used to generate a guide for disengaging from the first latch (42).

2. The head assembly according to claim 1, characterized in that, The head assembly further includes a mounting bracket (60), a first rotating seat (51), and a second rotating seat (52). The head body (10) is rotatably mounted on the mounting bracket (60) around the first axis. The first rotating seat (51) and the second rotating seat (52) are rotatably engaged around the second axis. The mounting bracket (60) is mounted on the first rotating seat (51). The second rotating seat (52) is used to fix and connect the fan body assembly (210). The oscillating motor (20) is mounted on the first rotating seat (51).

3. The head assembly according to claim 2, characterized in that, The transmission mechanism (30) has a transmission state and a non-transmission state. The clutch mechanism (40) is connected to the transmission mechanism (30) and is configured to drive the transmission mechanism (30) to switch between the transmission state and the non-transmission state to control the on / off state of the first transmission path.

4. The head assembly according to claim 3, characterized in that, The first gear (31) is configured with its axis parallel to the second axis, and the second gear (32) is configured with its axis parallel to the first axis; The first gear (31) has a first conical tooth (311), the second gear (32) has a second conical tooth (321) and a second cylindrical tooth (322), the first conical tooth (311) meshes with the second conical tooth (321), and the second cylindrical tooth (322) meshes with the rack (33).

5. The head assembly according to claim 4, characterized in that, The second gear (32) has two sets of second cylindrical teeth (322), which are located on both sides of the first conical teeth (311) in the axial direction. The rack (33) has a first tooth (332) and a second tooth (333), the first tooth (332) and the second tooth (333) respectively mesh with two sets of second cylindrical teeth (322), and the first tooth (332) and the second tooth (333) are spaced apart in the axial direction of the second gear (32) to form a strip-shaped clearance opening (334) to avoid the first conical tooth (311).

6. The head assembly according to claim 5, characterized in that, The head body (10) includes a housing (13), the housing (13) has a mounting part (131), the mounting part (131) is arc-shaped and its axis is the first axis, and the rack (33) is mounted on the mounting part (131).

7. The head assembly according to claim 6, characterized in that, The mounting support (60) has an arc-shaped mating surface (61), the axis of which is the first axis. The machine head body (10) is mated with the arc-shaped mating surface (61) through the mounting part (131) and can slide along the arc-shaped mating surface (61).

8. The head assembly according to claim 7, characterized in that, The head assembly also includes a support roller (64), the axis of which is parallel to the first axis and is located at the arc-shaped mating surface (61) to provide rolling support for the mounting part (131).

9. The head assembly according to claim 4, characterized in that, The clutch mechanism (40) is connected to the first gear (31) and is configured to drive the first gear (31) to switch between the driving position and the non-driving position; When the first gear (31) is in the transmission position, the transmission mechanism (30) is in the transmission state; when the first gear (31) is in the non-transmission position, the transmission mechanism (30) is in the non-transmission state.

10. The head assembly according to claim 9, characterized in that, The operating element (41) is configured to push the first gear (31) to move in the engagement direction. The clutch mechanism (40) further includes a third elastic element (45) that engages with the first gear (31) and is configured to provide a driving force to drive the operating element (41) to move in a direction opposite to the engagement direction.

11. The head assembly according to claim 10, characterized in that, The head assembly further includes a housing (63) having a mounting groove (633) extending in a direction parallel to the engagement direction, an operating member (41) disposed in the mounting groove (633) and configured to move along the mounting groove (633); the operating member (41) also has a pressing part (414) at least partially located outside the housing (63); And / or, the head assembly further includes a mounting base having a column (511) extending in a direction parallel to the engagement direction and having a shaft hole therein, the gear shaft of the first gear (31) being rotatably disposed in the shaft hole, and the third elastic element (45) being disposed in the shaft hole and abutting against the gear shaft of the first gear (31); And / or, the head assembly further includes a mounting base, the first buckle (42) is disposed on the mounting base, and the first buckle (42) is an annular buckle, the first elastic element (43) is disposed inside the first buckle (42) and abuts against the operating element (41).

12. The head assembly according to any one of claims 2-11, characterized in that, The oscillating motor (20) has a first output shaft (22) and a second output shaft (23). The first output shaft (22) is connected to the head body (10) and the second output shaft (23) is anti-rotating with the second rotating seat (52) in the direction of rotation around the second axis.

13. The head assembly according to claim 12, characterized in that, The end section of the second output shaft (23) is non-circular, and the second rotating seat (52) has a mating shaft hole (521) that mates with the end of the second output shaft (23). And / or, the first rotating seat (51) has a rotating shaft structure (513) extending along the direction of the second axis, and the second rotating seat (52) has a rotating groove (522) that mates with the rotating shaft structure (513); one of the rotating shaft structure (513) and the rotating groove (522) has a second latch (523) and the other has a slot (5131), the slot (5131) engaging with the second latch (523) and creating a limit in the direction of the second axis.

14. A fan, characterized in that, Includes the nose assembly as described in any one of claims 1-13.

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