Machine head assembly and fan

Abstract

The utility model relates to a machine head assembly and a fan. The machine head assembly comprises a machine head body, an assembling support, a first rotating base, a second rotating base and a head shaking motor. The machine head body is rotatably arranged on the assembly support around a first axis. The first rotating seat and the second rotating seat are in running fit around a second axis, and the second axis intersects with the direction of the first axis. The assembling support is arranged on the first rotating base, and the second rotating base is used for being fixedly connected with a fan body assembly of the fan. The head shaking motor is used for driving the machine head body to rotate around the first axis, and the first rotating seat and the second rotating seat relatively rotate around the second axis. According to the machine head assembly, the head shaking motor can drive the first rotating base to rotate relative to the second rotating base, and left-right head shaking of the machine head body is achieved. Meanwhile, the head shaking motor and the assembling support are jointly located on the first rotating base, the head shaking motor can be well used for driving the machine head body to rotate around the first axis, up-down head shaking is achieved, and the up-down and left-right head shaking function can be achieved through the single head shaking motor.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of electrical appliances, in particular to a fan head assembly and a fan. BACKGROUND

[0002] Circulating fans are more and more widely used due to their advantages of more uniform air flow, energy saving and the like. A circulating fan is usually composed of a body and a head. In order to improve the air supply range, some circulating fans have a head-tilting function. Specifically, the head-tilting function includes up-down tilting and left-right tilting.

[0003] In the related art, most circulating fans have up-down tilting and left-right tilting functions which are basically controlled by two motors respectively. The number of motors is large, the cost is high, and the assembly efficiency is low. In the current trend of lower product cost, the driving scheme undoubtedly has a high cost and a low value. Meanwhile, the number of motors used is large, which causes high power of the whole machine, low energy efficiency, and ineffective energy saving. Moreover, the placement positions of the two motors in the double-motor driving scheme require a large space, which easily causes the appearance design to be bulky. CONTENT OF THE UTILITY MODEL

[0004] Therefore, it is necessary to provide a fan head assembly and a fan capable of realizing left-right and up-down tilting by using a single motor.

[0005] A fan head assembly for a fan, comprising:

[0006] a head body;

[0007] an assembly support, wherein the head body is rotatably arranged on the assembly support about a first axis;

[0008] a first rotating seat and a second rotating seat, wherein the first rotating seat and the second rotating seat are rotatably matched about a second axis, the direction in which the second axis is located intersects the direction in which the first axis is located; the assembly support is arranged on the first rotating seat, and the second rotating seat is used for fixedly connecting a body assembly of the fan; and

[0009] a tilting motor arranged on the first rotating seat and used for driving the head body to rotate about the first axis and the first rotating seat to rotate about the second axis relative to the second rotating seat.

[0010] In one of the embodiments, the fan head assembly comprises a rack and a transmission gear, wherein the rack is arranged on the head body and is arranged about the first axis, and the transmission gear is transmissionally connected to the tilting motor and is engaged with the rack.

[0011] In one of the embodiments, the transmission gear includes a first gear and a second gear, the first gear is configured to have an axis parallel to the second axis, and the second gear is configured to have an axis parallel to the first axis;

[0012] 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 is engaged with the second conical tooth portion, and the second cylindrical tooth portion is engaged with the rack gear.

[0013] In one of the embodiments, the second gear has two groups of the second cylindrical tooth portions, and the two groups of the second cylindrical tooth portions are respectively located on two sides of the second conical tooth portion in the axial direction;

[0014] The rack gear has a first tooth portion and a second tooth portion, the first tooth portion and the second tooth portion are respectively engaged with the two groups of the second cylindrical tooth portions, and the first tooth portion and the second tooth portion are spaced apart in the axial direction of the second gear to form a strip-shaped avoiding opening for avoiding the second conical tooth portion.

[0015] In one of the embodiments, the head body includes a housing, the housing has a mounting portion, the mounting portion is arc-shaped, and an axis of the mounting portion is the first axis, and the rack gear is mounted on the mounting portion.

[0016] In one of the embodiments, the assembly support has an arc-shaped matching surface, an axis of the arc-shaped matching surface is the first axis, the head body is matched with the arc-shaped matching surface through the mounting portion, and the head body is capable of sliding along the arc-shaped matching surface.

[0017] In one of the embodiments, the head assembly further includes a supporting roller, an axis of the supporting roller is parallel to the first axis, and the supporting roller is arranged at the arc-shaped matching surface to rollingly support the mounting portion.

[0018] In one of the embodiments, the head motor has a first output shaft and a second output shaft, the first output shaft is drivingly connected with the head body, and the second output shaft is rotationally matched with the second rotating seat in a steering direction around the second axis.

[0019] In one of the embodiments, an end portion of the second output shaft is non-circular in cross section, and the second rotating seat has a matching shaft hole matched with the end portion of the second output shaft;

[0020] In one of the embodiments, the first rotating seat has a rotating shaft structure extending in the direction of the second axis, and the second rotating seat has a rotating groove matched with the rotating shaft structure; one of the rotating shaft structure and the rotating groove has a buckle, and the other one has a clamping groove, the clamping groove is clamped with the buckle, and a limit in the direction of the second axis is generated.

[0021] A fan, including the head assembly as described above.

[0022] The aforementioned head assembly and fan, since the oscillating motor and the head body are both directly or indirectly mounted on the first rotating base, can rotate together around the second axis. Therefore, the oscillating motor can drive the first rotating base to rotate relative to the second rotating base, achieving left-right oscillation of the head body. Furthermore, since the oscillating motor and the mounting bracket are both located on the first rotating base, the oscillating motor can also effectively drive the head body on the mounting bracket to rotate relative to the mounting bracket around the first axis, achieving up-down oscillation. In this way, the head assembly achieves both up-down and left-right oscillation functions of the head body with a single oscillating motor, helping to reduce the overall power consumption of the fan and requiring less installation space. Attached Figure Description

[0023] 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.

[0024] Figure 1 This is a schematic diagram of the structure of a fan with a head assembly in one embodiment of this application.

[0025] Figure 2 for Figure 1 The diagram shows a cross-sectional view of the fan.

[0026] Figure 3 for Figure 2 The diagram shows an enlarged view of the fan at point A.

[0027] Figure 4 for Figure 1 The diagram shows a cross-sectional view of the fan from another angle.

[0028] Figure 5 for Figure 4 The diagram shows an enlarged view of the fan at point B.

[0029] Figure 6 for Figure 1 The diagram shows the exploded structure of the fan.

[0030] Figure 7 for Figure 6 The diagram shows an exploded view of the fan head body.

[0031] Figure 8 for Figure 6Structure diagram of the rack in the fan.

[0032] Figure 9 For Figure 6 Structure diagram of the first gear in the fan.

[0033] Figure 10 For Figure 6 Structure diagram of the second gear in the fan.

[0034] Figure 11 For Figure 6 Structure diagram of the driving gear in the fan.

[0035] Figure 12 For Figure 6 Structure diagram of the support body in the fan.

[0036] Figure 13 For Figure 6 Structure diagram of the shell in the fan.

[0037] Figure 14 For Figure 6 Structure diagram of the outer roller and the inner roller in the fan.

[0038] Figure 15 For Figure 6 Structure diagram of the head-shaking motor in the fan.

[0039] Figure 16 For Figure 6 Structure diagram of the first rotating seat in the fan.

[0040] Figure 17 For Figure 6 Structure diagram of the second rotating seat cooperating with the fuselage assembly in the fan.

[0041] Explanation of reference signs: 100, head assembly; 10, head body; 11, main motor; 12, fan blade; 13, casing; 131, mounting portion; 1311, first screw column; 132, decorative shell; 20, assembly support; 21, arc-shaped matching surface; 22, support body; 221, first shaft hole; 222, second shaft hole; 23, outer shell; 231, mounting groove; 232, gear groove; 24, support roller; 241, outer roller; 242, inner roller; 31, first rotating seat; 311, second screw column; 312, stand; 313, rotating shaft structure; 3131, clamping groove; 32, second rotating seat; 321, matching shaft hole; 322, rotating groove; 323, buckle; 324, annular groove; 40, head-shaking motor; 41, driving gear; 42, first output shaft; 43, second output shaft; 44, second screw hole; 51, rack; 511, first screw hole; 512, first tooth part; 513, second tooth part; 514, strip-shaped avoiding opening; 52, transmission gear; 521, first gear; 5211, first conical tooth part; 5212, first cylindrical tooth part; 522, second gear; 5221, second conical tooth part; 5222, second cylindrical tooth part; 200, fan; 210, body assembly; 211, body rod; 212, chassis. DETAILED DESCRIPTION

[0042] In order to make the above objectives, features and advantages of the present application more obvious and easy to understand, the specific embodiments of the present application are described in detail below. In the following description, a large number of specific details are set forth in order to fully understand the present application. However, the present application can be implemented in many other ways different from those described herein, and those skilled in the art can make similar improvements without departing from the spirit of the present application, so the present application is not limited to the specific embodiments disclosed below.

[0043] In the description of the present application, it should be understood that if these terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like appear, these terms indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing and simplifying the description of the present application, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the present application.

[0044] In addition, if there is a term "and / or", "and / or" is only a description of the relationship between the associated objects, and indicates that there can be three kinds of relationships, for example, A and / or B, which can represent the relationship between A and B: A exists alone, A and B exist together, and B exists alone. In addition, the character " / " in this paper generally represents an "or" relationship between the associated objects before and after it. If there are terms "first", "second", these terms are only for descriptive purposes, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of indicated technical features. Therefore, the features limited by "first", "second" can be explicitly or implicitly included at least one feature. In the description of the present application, if the term "multiple" appears, the meaning of "multiple" is at least two, such as two, three, four, five, etc., unless otherwise explicitly specified.

[0045] In this application, unless otherwise expressly specified and limited, if the terms "mounting", "connecting", "connecting", "fixing" and the like appear, these terms should be interpreted broadly. For example, it can be fixedly connected, or it can be detachably connected, or it can be integrated; it can be mechanically connected, or it can be electrically connected; it can be directly connected, or it can be indirectly connected through an intermediate medium; it can be the internal communication of two elements or the interaction relationship of two elements, unless otherwise expressly limited. For those skilled in the art, the specific meaning of the above terms in this application can be understood according to the specific situation.

[0046] In this application, unless otherwise expressly specified and limited, if the first feature is described as "on" or "under" the second feature and the like, it can mean that the first and second features are in direct contact, or the first and second features are indirectly in contact through an intermediate medium. Moreover, the first feature "above", "above" and "above" of the second feature can be directly above or obliquely above the first feature, or only indicate that the horizontal height of the first feature is higher than that of the second feature. The first feature "below", "below" and "below" of the second feature can be directly below or obliquely below the first feature, or only indicate that the horizontal height of the first feature is less than that of the second feature.

[0047] It should be noted that if an element is referred to as "fixed to" or "provided on" another element, it can be directly on another element or there can be a middle element. If an element is considered to be "connected" to another element, it can be directly connected to another element or there can be a middle element. If there is, the terms "vertical", "horizontal", "up", "down", "left", "right" and similar expressions used in this application are only for illustrative purposes and do not represent the only implementation.

[0048] Please refer to Figures 1 to 5The head assembly 100 provided by an embodiment of the present application comprises a head body 10, an assembly support 20, a first rotating seat 31, a second rotating seat 32, and a head-shaking motor 40. The head body 10 is rotatably arranged on the assembly support 20 about a first axis. The first rotating seat 31 and the second rotating seat 32 are rotatably connected about a second axis, and the direction in which the second axis lies intersects the direction in which the first axis lies. The assembly support 20 is arranged on the first rotating seat 31, and the second rotating seat 32 is used to fixedly connect a fuselage assembly 210 of a fan 200. The head-shaking motor 40 is arranged on the first rotating seat 31 and is used to drive the head body 10 to rotate about the first axis and drive the first rotating seat 31 to rotate about the second axis relative to the second rotating seat 32.

[0049] The head assembly 100 is used for the fan 200, which can be, but is not limited to, a circulating fan. The fan 200 further comprises the fuselage assembly 210, and the head assembly 100 is connected to the fuselage assembly 210. Specifically, the fuselage assembly 210 comprises a fuselage rod 211 and a chassis 212, and the head assembly 100 is connected to the top end of the fuselage rod 211, and the chassis 212 is connected to the bottom end of the fuselage rod 211. It can be understood that, in order to realize its normal function, the head body 10 comprises a main motor 11, a fan blade 12, a casing 13, and the like. Among them, the main motor 11 and the fan blade 12 are installed in the casing 13. The main motor 11 is drivingly connected to the fan blade 12 and is used to drive the fan blade 12 to rotate to form an air supply airflow.

[0050] The direction in which the second axis lies intersects the direction in which the first axis lies, that is, the head body 10 can rotate about two different directions. Among them, the direction in which the first axis lies is a first direction, and the first direction intersects the height direction of the fan 200, and the height direction of the fan 200 is also the vertical direction when the fan 200 is normally used. The direction in which the second axis lies is a second direction, and the second direction intersects the horizontal direction, and it can be understood that the second direction also intersects the first direction. For the convenience of understanding, the first direction is taken as the horizontal direction below, and specifically the left-right direction of the fan 200, and the second direction is taken as the vertical direction.

[0051] The head body 10 rotates about the first axis to realize up-down shaking. At the same time, the head body 10 is indirectly arranged on the first rotating seat 31 through the assembly support 20, the first rotating seat 31 can rotate about the second axis relative to the second rotating seat 32, and the second rotating seat 32 is fixed on the fuselage rod 211 of the fuselage assembly 210. Therefore, when the first rotating seat 31 rotates about the second axis relative to the second rotating seat 32, correspondingly, the head-shaking motor 40 located on the first rotating seat 31, the assembly support 20, and the head body 10 arranged on the assembly support 20 are rotated together to realize left-right shaking of the head body 10.

[0052] The above-mentioned head assembly 100, since the head-shaking motor 40 and the head body 10 are directly or indirectly arranged on the first rotating seat 31, can jointly rotate around the second axis. Therefore, the head-shaking motor 40 can realize the left and right shaking of the head body 10 by driving the first rotating seat 31 to rotate relative to the second rotating seat 32. On this basis, since the head-shaking motor 40 is jointly arranged on the first rotating seat 31 with the assembling support 20, the head-shaking motor 40 can also be well used to drive the head body 10 on the assembling support 20 to rotate around the first axis relative to the assembling support 20, thereby realizing the up and down shaking. In this way, the head assembly 100 realizes the up and down and left and right shaking functions of the head body 10 through a single head-shaking motor 40, which helps to reduce the overall power of the fan 200 and the installation space required.

[0053] Please refer to Figures 6 to 8 In some embodiments, the head assembly 100 further comprises a transmission mechanism, and the head-shaking motor 40 is in transmission connection with the head body 10 through the transmission mechanism, so as to drive the head body 10 to rotate around the first axis through the transmission mechanism.

[0054] The transmission mechanism comprises a transmission member, which is arranged on the head body 10 and extends around the first axis, and the head-shaking motor 40 is in transmission connection with the head body 10 through the transmission member.

[0055] The transmission member is fixedly connected with the head body 10 and can drive the head body 10 to rotate when being driven by the head-shaking motor 40. The transmission member can be in the shape of a circular arc around the first axis, and the arc can be π, π / 2, etc., but is not limited thereto.

[0056] In this way, the head-shaking motor 40 can drive the head body 10 to rotate around the first axis by driving the transmission member extending around the first axis to rotate.

[0057] Further, the transmission member is a rack 51, and the transmission mechanism further comprises a transmission gear 52, which is in transmission connection with the head-shaking motor 40 and is in meshing connection with the rack 51.

[0058] The transmission gear 52 is driven to rotate by the head-shaking motor 40 and drives the rack 51 in meshing connection therewith to rotate around the first axis when rotating, thereby driving the head body 10 to shake up and down.

[0059] In this way, the head-shaking motor 40 is in transmission connection with the head body 10 through the transmission gear 52 and the rack 51, and drives the head body 10 to shake up and down in this way.

[0060] Further, the casing 13 of the head body 10 has a mounting portion 131, which is in the shape of a circular arc and has the first axis as the axis, and the rack 51 is mounted on the mounting portion 131.

[0061] Specifically, the casing 13 further has an air inlet and an air outlet, the mounting portion 131 is located on the side of the air inlet facing outward, the rack 51 is arranged on the side of the mounting portion 131 facing away from the air inlet, and the meshing teeth of the rack 51 are located on the side of the rack 51 facing away from the mounting portion 131.

[0062] The rack 51 has a first screw hole 511, and the mounting portion 131 has a first screw column 1311 matched with the first screw hole 511, and the two are connected by a screw. In addition, the casing 13 can further include a decorative shell 132, the decorative shell 132 is arranged on the side of the rack 51 facing away from the mounting portion 131, and meanwhile, the decorative shell 132 has a through hole, and the meshing teeth of the rack 51 are exposed at the through hole to be engaged with the transmission gear 52.

[0063] Please refer to Figure 9 and Figure 11 In some embodiments, the output shaft of the head-shaking motor 40 is parallel to the second axis, the transmission gear 52 includes a first gear 521 and a second gear 522, the first gear 521 is configured to have an axis parallel to the second axis, and the second gear 522 is configured to have an axis parallel to the first axis.

[0064] The first gear 521 and the second gear 522 have gear shafts, the first gear 521 has a first conical tooth portion 5211, the second gear 522 has a second conical tooth portion 5221 and a second cylindrical tooth portion 5222, the second conical tooth portion 5221 is engaged with the first conical tooth portion 5211, and the second cylindrical tooth portion 5222 is engaged with the rack 51.

[0065] In addition, the transmission mechanism can further include a driving gear 41, the driving gear 41 is sleeved on the output shaft of the head-shaking motor 40. The first gear 521 further has a first cylindrical tooth portion 5212, and the first cylindrical tooth portion 5212 is engaged with the driving gear 41.

[0066] In this way, the torque output by the head-shaking motor 40 can be converted to the required direction by the first gear 521 and the second gear 522 cooperating with each other, and then the second cylindrical tooth portion 5222 of the second gear 522 drives the head body 10 to rotate around the first axis through the rack 51.

[0067] Further, the second gear 522 has two groups of second cylindrical tooth portions 5222, and the two groups of second cylindrical tooth portions 5222 are respectively located on the two sides of the second conical tooth portion 5221 in the axial direction.

[0068] The rack 51 has a first tooth portion 512 and a second tooth portion 513, the first tooth portion 512 and the second tooth portion 513 are respectively engaged with the two groups of second cylindrical tooth portions 5222, and the first tooth portion 512 and the second tooth portion 513 are spaced apart in the axial direction of the second gear 522 to form a strip-shaped avoiding opening 514 avoiding the second conical tooth portion 5221.

[0069] It can be understood that the first tooth portion 512 meshes with one side second cylindrical tooth portion 5222 of the second gear 522, and the second tooth portion 513 meshes with the other side second cylindrical tooth portion 5222 of the second gear 522.

[0070] In this way, the transmission stability between the rack 51 and the second gear 522 is improved.

[0071] In some embodiments, the head assembly 100 can further comprise a clutch mechanism for controlling whether the transmission gear 52 transmits between the head-tilting motor 40 and the rack 51.

[0072] In other words, the transmission gear 52 has a transmission state and a non-transmission state, and in the transmission state, the head-tilting motor 40 and the rack 51 are in transmission connection, and in the non-transmission state, the head-tilting motor 40 is not in transmission connection with the rack 51. The clutch mechanism can control the transmission gear 52 to switch between the transmission state and the non-transmission state.

[0073] In this way, when the head is not required to be tilted up and down, the transmission gear 52 can be controlled by the clutch mechanism to be in the non-transmission state, so that the head-tilting motor 40 can no longer drive the head body 10 to rotate around the first axis through the transmission mechanism.

[0074] Please refer to Figure 12 and Figure 13 In some embodiments, the assembly support 20 has an arc-shaped matching surface 21, the axis of the arc-shaped matching surface 21 is the first axis, the head body 10 is matched with the arc-shaped matching surface 21 through the mounting portion 131, and can slide along the arc-shaped matching surface 21 to rotate around the first axis.

[0075] Since the axis of the arc-shaped matching surface 21 is the first axis, the head body 10 slides along the arc-shaped matching surface 21 through the mounting portion 131 to realize rotation around the first axis.

[0076] In this way, the head body 10 can realize stable rotation relative to the assembly support 20 by sliding along the arc-shaped matching surface 21.

[0077] Specifically, the assembly support 20 comprises a support body 22, a housing 23 and a limiting cover (not shown in the figure), and the support body 22 forms the arc-shaped matching surface 21. The housing 23 is assembled on the first rotating seat 31 and can be connected with the first rotating seat 31 through a screw. The top end of the housing 23 has a mounting groove 231, the support body 22 is arranged in the mounting groove 231, and the top end of the support body 22 can pass through the strip-shaped avoiding opening 514 to match with the mounting portion 131 through the rack 51. In addition, the top end of the housing 23 can further form a gear groove 232, and the second gear 522 is installed in the gear groove 232. The limiting cover is arranged on the arc-shaped matching surface 21 of the support body 22, and the mounting portion 131 is at least partially located between the support body 22 and the limiting cover, so as to limit the mounting portion 131 between the two, preventing the head body 10 from being separated.

[0078] Please refer to Figure 14 Further, the assembly support 20 further comprises a supporting roller 24, the axis of the supporting roller 24 is parallel to the first axis, the supporting roller 24 is arranged on the support body 22 and located at the arc-shaped matching surface 21, and the supporting roller 24 rolls to support the mounting portion 131.

[0079] In this way, the supporting roller 24 can support the mounting portion 131 and make the mounting portion 131 slide along the arc-shaped matching surface 21 more smoothly, which is helpful for the head body 10 to realize the up-and-down panning.

[0080] Specifically, the supporting roller 24 comprises an outer roller 241 and an inner roller 242, the support body 22 has a first shaft hole 221 and a second shaft hole 222, the outer roller 241 is installed on the support body 22 through the first shaft hole 221, and the inner roller 242 is installed on the support body 22 through the second shaft hole 222.

[0081] Please refer to Figure 15 and Figure 16 In some embodiments, the output shaft of the panning motor 40 comprises a first output shaft 42 and a second output shaft 43, the first output shaft 42 is drivingly connected with the head body 10, and the second output shaft 43 is rotationally matched with the second rotating seat 32 in the direction around the second axis.

[0082] The panning motor 40 is a double-shaft motor, and the two output shafts are parallel to the second axis. The driving gear 41 is sleeved on the first output shaft 42 of the panning motor 40. The first rotating seat 31 has a mounting position for mounting the panning motor 40, and the panning motor 40 has a second screw hole 44. The first rotating seat 31 has a second screw column 311 matched with the second screw hole 44, and the panning motor 40 is fixed on the first rotating seat 31 through the second screw hole 44 and the screw column in a screwing manner. In addition, the first rotating seat 31 further has a stand column 312 for rotatingly mounting the second gear 522.

[0083] The second output shaft 43 is in a rotation-stopping cooperation with the second rotating seat 32. Since the second rotating seat 32 is fixed on the machine body rod 211, when the second output shaft 43 outputs torque, a reaction force is generated to drive the head-shaking motor 40 to rotate the first rotating seat 31, and further drive the assembling support 20 and the head body 10 to rotate around the second axis.

[0084] In this way, the head-shaking motor 40 can drive the up-and-down shaking and the left-and-right shaking through the two output shafts respectively.

[0085] Further, the end section of the second output shaft 43 is non-circular, and the second rotating seat 32 has a cooperation shaft hole 321 cooperating with the end section of the second output shaft 43. It can be understood that the cooperation shaft hole 321 is non-circular cooperating with the end section of the second output shaft 43.

[0086] Specifically, the end section of the first output shaft 42 is also non-circular, and the end sections of the first output shaft 42 and the second output shaft 43 can be flat, and correspondingly, the cooperation shaft hole 321 is also flat. Similarly, the driving gear 41 has a flat shaft hole, and the end section of the first output shaft 42 is inserted into the shaft hole of the driving gear 41 to realize the rotation-stopping cooperation of the two.

[0087] In this way, the end section of the second output shaft 43 is inserted into the cooperation shaft hole 321 to realize the rotation-stopping cooperation of the second output shaft 43 and the second rotating seat 32.

[0088] Further, the first rotating seat 31 has a rotating shaft structure 313 extending along the direction of the second axis, and the second rotating seat 32 has a rotating groove 322 cooperating with the rotating shaft structure 313. One of the rotating shaft structure 313 and the rotating groove 322 has a buckle 323 (as shown in Figure 5 , and the other has a clamping groove 3131 which is clamped with the buckle 323 and generates a limit in the direction of the second axis.

[0089] Specifically, the rotating shaft structure 313 is hollow, the rotating groove 322 is arranged around the cooperation shaft hole 321, and the second output shaft 43 passes through the rotating shaft structure 313 and cooperates with the cooperation shaft hole 321.

[0090] In this way, the first rotating seat 31 can rotate around the second axis in cooperation with the second rotating seat 32 through the rotating shaft structure 313, and the cooperation of the buckle 323 and the clamping groove 3131 can reduce the probability of abnormal disengagement of the two.

[0091] Please refer to Figure 17 , further, the surface of the second rotating seat 32 cooperating with the first rotating seat 31 has an annular groove 324. The annular groove 324 is formed around the second axis to constrain and guide the rotation of the first rotating seat 31.

[0092] The application also provides a fan 200 comprising the above-mentioned head assembly 100. It can be understood that, in order to realize its normal functions, the fan 200 further comprises a body assembly 210, and the head assembly 100 is connected to the body assembly 210.

[0093] The assembly process of the fan 200 is briefly described as follows:

[0094] In the assembly process, the outer roller 241 is first assembled to the first shaft hole 221 of the support body 22, then the inner roller 242 is assembled to the second shaft hole 222 of the support body 22, then the support body 22 is passed through the strip-shaped avoiding opening 514 of the rack 51, then the rack 51 and the mounting part 131 are fixedly connected by screwing the first screw hole 511 of the rack 51 and the first screw column 1311 of the mounting part 131, and finally the decorative shell 132 is assembled, thereby completing the assembly of the head body 10.

[0095] The second gear 522 is assembled to the gear groove 232 in the shell 23 through a gear shaft, then the support body 22 is assembled to the mounting groove 231 of the shell 23, and the shell 23 is fixed by screwing. Then the first gear 521 is assembled to the stand column 312 of the first rotating seat 31 through a gear shaft, thereby completing the assembly of the first gear 521 and the second gear 522. Then the second screw hole 44 in the swing motor 40 and the second screw column 311 in the first rotating seat 31 are fixedly connected by screwing. Then the driving gear 41 is assembled to the first output shaft 42 in the swing motor 40 through the shaft hole thereof, and finally the first rotating seat 31 is assembled to the shell 23 by screwing. Finally, the rotating groove 322 in the second rotating seat 32 and the rotating shaft structure 313 of the first rotating seat 31 are inserted and matched, the rotating groove 322 is provided with a buckle 323, and the rotating shaft structure 313 is clamped, and meanwhile the second output shaft 43 in the swing motor 40 is inserted into the matched shaft hole 321 of the second rotating seat 32, thereby completing the assembly of the entire head assembly 100, and the head assembly 100 can be further installed on the body assembly 210 through the second rotating seat 32.

[0096] When the user turns on the swing function, the first output shaft 42 of the swing motor 40 drives the driving gear 41 to rotate, the driving gear 41 meshes with the first cylindrical tooth part 5212 of the first gear 521, thereby driving the first gear 521 to operate, the first conical tooth part 5211 of the first gear 521 meshes with the second conical tooth part 5221 of the second gear 522, thereby driving the second gear 522 to operate, and the second cylindrical tooth part 5222 on the second gear 522 meshes with the rack 51, thereby driving the head body 10 to swing up and down. At the same time, the reaction force generated by the second output shaft 43 of the swing motor 40 and the second rotating seat 32 can drive the head body 10 to rotate through the swing motor 40, the first rotating seat 31, the shell 23 and the support body 22, thereby realizing left and right swing.

[0097] The technical features of the above-described embodiments can be combined in any manner. To make the description concise, all possible combinations of the technical features in the above-described embodiments are not described, but it should be considered that any combination of the technical features is within the scope of the present disclosure, as long as the combination does not result in contradictions.

[0098] The above-described embodiments only express several implementation manners of the present application, and the description is relatively specific and detailed, but it should not be understood as a limitation on the patent scope of the present application. It should be noted that, for those skilled in the art, several modifications and improvements can be made without departing from the concept of the present application, and these are within the protection scope of the present application. Therefore, the patent protection scope of the present application should be subject to the appended claims.

Claims

1. A nose assembly for a fan, the nose assembly comprising: The head assembly comprises: a head body (10); an assembly support (20), the head body (10) being rotatably arranged on the assembly support (20) around a first axis; a first rotating seat (31) and a second rotating seat (32), the first rotating seat (31) and the second rotating seat (32) being rotatably connected around a second axis, the second axis being perpendicular to the first axis; the assembly support (20) being arranged on the first rotating seat (31), and the second rotating seat (32) being used for fixedly connecting a body assembly (210) of the fan; and a head-rotating motor (40) arranged on the first rotating seat (31) and used for driving the head body (10) to rotate around the first axis and the first rotating seat (31) to rotate around the second axis relative to the second rotating seat (32).

2. The nose assembly of claim 1, wherein, The head assembly comprises a rack (51) and a transmission gear (52), the rack (51) being arranged on the head body (10) and arranged around the first axis, and the transmission gear (52) being transmissionally connected with the head-rotating motor (40) and meshed with the rack (51).

3. The nose assembly of claim 2, wherein, The transmission gear (52) comprises a first gear (521) and a second gear (522), the first gear (521) being arranged with an axis parallel to the second axis, and the second gear (522) being arranged with an axis parallel to the first axis; the first gear (521) has a first conical tooth portion (5211), the second gear (522) has a second conical tooth portion (5221) and a second cylindrical tooth portion (5222), the second conical tooth portion (5221) is meshed with the first conical tooth portion (5211), and the second cylindrical tooth portion (5222) is meshed with the rack (51).

4. The nose assembly of claim 3, wherein, The second gear (522) has two groups of the second cylindrical tooth portions (5222), and the two groups of the second cylindrical tooth portions (5222) are respectively located on two sides of the second conical tooth portion (5221) in the axial direction; the rack (51) has a first tooth portion (512) and a second tooth portion (513), the first tooth portion (512) and the second tooth portion (513) are respectively meshed with the two groups of the second cylindrical tooth portions (5222), and the first tooth portion (512) and the second tooth portion (513) are spaced apart in the axial direction of the second gear (522) to form a strip-shaped avoiding port (514) avoiding the second conical tooth portion (5221).

5. The handpiece assembly of claim 2, wherein, The head body (10) comprises a casing (13), the casing (13) has a mounting portion (131), the mounting portion (131) is in the shape of a circular arc, the axis of the mounting portion (131) is the first axis, and the rack (51) is mounted on the mounting portion (131).

6. The nose assembly of claim 5, wherein, The assembly support (20) has an arc-shaped matching surface (21), the axis of the arc-shaped matching surface (21) is the first axis, the head body (10) is matched with the arc-shaped matching surface (21) through the mounting portion (131), and the head body (10) can slide along the arc-shaped matching surface (21).

7. The handpiece assembly of claim 6, wherein, The head assembly further comprises a supporting roller (24) which is axially parallel to the first axis and is arranged at the arc-shaped matching surface (21) to rollingly support the mounting portion (131).

8. The handpiece assembly of any of claims 1-7, wherein, The head-rotating motor (40) has a first output shaft (42) and a second output shaft (43), the first output shaft (42) is drivingly connected to the head body (10), and the second output shaft (43) is rotationally matched with the second rotating seat (32) in a direction around the second axis.

9. The handpiece assembly of claim 8, wherein, An end section of the second output shaft (43) is non-circular, and the second rotating seat (32) has a matching shaft hole (321) matched with the end section of the second output shaft (43); And / or, the first rotating seat (31) has a rotating shaft structure (313) extending along the direction of the second axis, and the second rotating seat (32) has a rotating groove (322) matched with the rotating shaft structure (313); one of the rotating shaft structure (313) and the rotating groove (322) has a buckle (323), and the other has a clamping groove (3131), the clamping groove (3131) is clamped with the buckle (323), and a limit in the direction of the second axis is generated.

10. A fan, characterized by The head assembly comprises the head assembly according to any one of claims 1-9.

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