Oscillating mechanism and circulating fan with same

Abstract

The utility model discloses an oscillating mechanism and a circulating fan with the oscillating mechanism, the oscillating mechanism comprises a machine head, a driving mechanism and a balancing assembly, and an up-down oscillating support assembly comprises an up-down oscillating main body and a first shell; the up-down driving assembly is arranged on one side of the left-right shaking support and is in transmission connection with the first shell so as to drive the up-down shaking support assembly to rotate up and down relative to the left-right shaking support. One end of the elastic piece is connected with the left-right oscillating bracket, and the other end is connected with the up-down oscillating main body and is elastically supported on the up-down oscillating main body; when the up-and-down shaking support assembly rotates downwards, the up-and-down shaking support assembly compresses the elastic piece. When the up-and-down oscillating support assembly rotates upwards, the elastic piece releases elastic force and drives the up-and-down oscillating support assembly to rotate upwards. Therefore, the elastic force generated by the elastic piece can partially or completely counteract the gravity generated by the up-and-down oscillating bracket assembly, so that the driving force of the up-and-down driving assembly for driving the up-and-down oscillating bracket assembly to rotate is reduced, and the requirement of the up-and-down driving assembly is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of fans, in particular to an oscillating mechanism and a circulating fan with the same. Background Art

[0002] In the prior art, the shaking head mechanism of the circulation fan usually includes an upper and lower shaking head bracket and a left and right shaking head bracket. The upper and lower shaking head bracket and the left and right shaking head bracket mostly use four-linkages and crank rockers to realize the shaking head function. However, these mechanisms have certain limitations in design. Not only is the shaking head angle fixed and cannot be adjusted, but the shaking head range is relatively small.

[0003] In addition, there are also those that use gear transmission. For those that use gear transmission, the shaking angle range is relatively large, and the shaking angle can be adjusted by controlling the rotation range of the drive motor. However, it is found during use that when the drive motor drives the upper and lower shaking brackets to rotate up and down, the drive motor needs to provide a larger driving force because it needs to overcome the gravity generated by the upper and lower shaking brackets, which places higher requirements on the drive motor. Secondly, in some upper and lower shaking fans, the drive motor is usually arranged on one side of the fan. When driving the upper and lower shaking brackets to rotate up and down, it is easy to be subjected to unbalanced force, resulting in unstable movement, and then causing adverse phenomena such as shaking, affecting the user experience. Utility Model Content

[0004] In order to overcome the defects described in the above-mentioned prior art, the utility model provides a shaking head mechanism and a circulating fan having the same. By setting a torsion spring, the elastic force generated by the torsion spring will partially or completely offset the gravity generated by the upper and lower shaking head bracket assemblies, so that the driving force of the first drive motor to drive the upper and lower shaking head bracket assemblies to rotate becomes smaller, so the requirements for the first drive motor are lower; in addition, since the balancing assembly is arranged on the other side of the left and right shaking head brackets, the force of the entire fan is balanced, thereby ensuring the rotation stability of the upper and lower shaking head bracket assemblies, avoiding the occurrence of adverse phenomena such as shaking, and greatly improving the user experience.

[0005] The technical solution adopted by the utility model to solve the problem is:

[0006] A shaking head mechanism, comprising:

[0007] The machine head comprises a left and right shaking bracket and an up and down shaking bracket assembly rotatably connected to the left and right shaking bracket; the up and down shaking bracket assembly comprises an up and down shaking main body and a first shell located at one side of the left and right shaking bracket;

[0008] The driving mechanism comprises a left-right driving assembly and an up-down driving assembly; the up-down driving assembly is arranged on one side of the left-right shaking bracket and is in driving connection with the first shell to drive the up-down shaking bracket assembly to rotate up and down relative to the left-right shaking bracket; the left-right driving assembly is used to drive the left-right shaking bracket to rotate left and right;

[0009] A balancing component, which is arranged on the other side of the left and right shaking brackets and comprises at least an elastic member, one end of which is connected to the left and right shaking brackets, and the other end of which is connected to the up and down shaking body and elastically supported by the up and down shaking body;

[0010] Among them, when the up and down driving assembly drives the up and down shaking head bracket assembly to rotate downward relative to the left and right shaking head bracket, the up and down shaking head bracket assembly compresses the elastic part; when the up and down driving assembly drives the up and down shaking head bracket assembly to rotate upward relative to the left and right shaking head bracket, the elastic part releases the elastic force and drives the up and down shaking head bracket assembly to rotate upward.

[0011] Furthermore, the balancing assembly further comprises a second shell and a first rotating sleeve connected to the up and down shaking body, the elastic member is a torsion spring, and the torsion spring comprises a torsion spring body, a first torsion arm arranged at one end of the torsion spring body, and a second torsion arm arranged at the other end of the torsion spring body;

[0012] A first fixing plate is provided on one side of the left and right shaking bracket, and the first rotating sleeve is fixedly connected to the first fixing plate;

[0013] The torsion spring body is sleeved on the first rotating sleeve, the first torsion arm is fixed to the first rotating sleeve, and the second torsion arm is fixed to the second shell.

[0014] Furthermore, the first rotating sleeve is provided with a clamping rib and a sliding column, the second housing is provided with a convex column and a limiting groove, the first torsion arm is fixed to the clamping rib, and the second torsion arm is fixed to the convex column;

[0015] The sliding column is clamped in the limiting groove and can slide in the limiting groove to limit the range of the up and down shaking bracket assembly.

[0016] Further, the up-and-down driving assembly includes a first driving motor and a first driving gear, and the first housing is provided with a first transmission gear;

[0017] The first driving gear is arranged on the output shaft of the first driving motor and meshes with the first transmission gear for transmission;

[0018] The first driving motor is used to drive the first driving gear to rotate, thereby driving the first transmission gear to rotate, so that the first shell rotates, thereby realizing the up and down rotation of the up and down shaking bracket assembly relative to the left and right shaking brackets.

[0019] Furthermore, a second fixing plate is provided on one side of the left and right shaking bracket, the first driving motor is arranged on the second fixing plate, and the output shaft of the first driving motor passes through the second fixing plate and is connected to the first driving gear;

[0020] A second rotating sleeve is fixedly connected to the second fixed plate, and the second rotating sleeve is rotatably connected to the first transmission gear.

[0021] Furthermore, it also includes a supporting component, the left and right driving assembly includes a second driving motor and a second driving gear arranged on the left and right shaking brackets, and the supporting part is provided with a second transmission gear;

[0022] The second driving gear is arranged on the output shaft of the second driving motor and meshes with the second transmission gear for transmission;

[0023] The second driving motor is used to drive the second driving gear to rotate around the second transmission gear, so that the left and right shaking bracket rotates left and right relative to the supporting component.

[0024] Further, the supporting component comprises a connecting shaft, and the second transmission gear is arranged on the top of the connecting shaft and is located in the left and right shaking brackets;

[0025] A through hole is provided at the bottom of the left and right shaking bracket, and the bottom end of the connecting shaft passes through the through hole and extends out of the left and right shaking bracket.

[0026] Furthermore, the support component further comprises a column joint and a shaft sleeve, and the shaft sleeve is sleeved on the outside of the column joint;

[0027] A slot adapted to the bottom end of the connecting shaft is provided on the top of the column joint, and the bottom end of the connecting shaft is plug-connected with the slot to fix the connecting shaft to the column joint.

[0028] A circulating fan includes the above-mentioned shaking mechanism and a fan assembly arranged on the upper and lower shaking body. The fan assembly includes a fan motor and fan blades. The fan blades are arranged on the output of the fan motor and drive the fan blades to rotate and blow air when the fan motor rotates.

[0029] Furthermore, it also includes a base and a column, one end of the column is fixedly connected to the column joint, and the other end of the column is fixedly connected to the base.

[0030] In summary, the utility model has the following technical effects:

[0031] 1. By setting a torsion spring, the elastic force generated by the torsion spring will partially or completely offset the gravity generated by the upper and lower shaking bracket assembly, so that the driving force of the first drive motor to drive the upper and lower shaking bracket assembly to rotate becomes smaller, so the requirements for the first drive motor are lower; in addition, since the balance assembly is arranged on the other side of the left and right shaking brackets, the force of the entire fan is balanced, ensuring the rotation stability of the upper and lower shaking bracket assembly, avoiding the occurrence of adverse phenomena such as shaking, and greatly improving the user experience.

[0032] 2. The driving method adopts gear transmission to increase the shaking angle and range of the shaking head, so as to satisfy the users to choose different shaking angles according to the number of people; secondly, the elastic force of the torsion spring is applied to the up and down shaking head bracket assembly or the up and down shaking head bracket assembly overcomes the elastic force of the torsion spring to balance the gravity generated by the up and down shaking head bracket assembly and the resistance of the first driving motor, thereby reducing the sense of frustration transmitted to the shaking head mechanism when the first driving motor is switched, and avoiding the adverse phenomena such as shaking caused by the unstable up and down shaking head, thereby improving the stability of the up and down shaking head bracket assembly when rotating relative to the left and right shaking head brackets. BRIEF DESCRIPTION OF THE DRAWINGS

[0033] Figure 1 This is an exploded schematic diagram of the shaking head mechanism of the utility model;

[0034] Figure 2 It is a cross-sectional schematic diagram of the first viewing angle of the shaking head mechanism of the utility model;

[0035] Figure 3 It is a cross-sectional schematic diagram of the second viewing angle of the shaking mechanism of the utility model;

[0036] Figure 4 It is a cross-sectional schematic diagram of the third viewing angle of the shaking head mechanism of the utility model;

[0037] Figure 5 It is a structural schematic diagram of the left and right shaking brackets in the shaking mechanism of the utility model;

[0038] Figure 6 It is a structural schematic diagram of one side of the upper and lower shaking bracket components in the shaking mechanism of the utility model;

[0039] Figure 7 This is a schematic diagram of the structure of the connecting shaft in the shaking mechanism of the utility model;

[0040] Figure 8 It is a structural schematic diagram of another embodiment of the utility model;

[0041] Fig. 9 This is an exploded schematic diagram of another embodiment of the utility model.

[0042] The meanings of the reference numerals are as follows:

[0043] 1. Left and right shaking head bracket; 11. Connecting plate; 12. First fixed plate; 121. First rotating sleeve; 1211. Sliding column; 1212. Clamping rib; 13. Second fixed plate; 14. Through hole; 131. Second rotating sleeve; 2. Up and down shaking head bracket assembly; 21. Up and down shaking head body; 211. Fan motor; 212. Motor fixing plate; 22. Second shell; 221. Second decorative cover; 222. Boss; 223. Limiting groove; 224. First pressing plate; 23. First shell; 231. First decorative cover; 232. First transmission gear; 233. Second pressing plate ; 24. Motor front cover; 3. Driving mechanism; 31. Second driving motor; 311. Second driving gear; 32. First driving motor; 321. First driving gear; 4. Torsion spring; 41. Torsion spring body; 42. First torsion arm; 43. Second torsion arm; 5. Support component; 51. Connecting shaft; 511. Second transmission gear; 5111. First protrusion; 5112. Second protrusion; 52. Bushing; 53. Column joint; 6. Column; 7. Base; 8. Rear mesh cover; 81. Middle frame; 82. Mesh cover nut; 83. Blade; 84. Front mesh cover; 85. Blade nut. DETAILED DESCRIPTION

[0044] For better understanding and implementation, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present invention.

[0045] In the description of the present invention, it should be noted that the terms "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside" and "outside" etc. indicating directions or positional relationships are based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the modules or components referred to must have a specific direction, be constructed and operated in a specific direction, and therefore should not be understood as a limitation on the present invention.

[0046] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those commonly understood by those skilled in the art of the present invention. The terms used herein in the specification of the present invention are only for the purpose of describing specific embodiments and are not intended to limit the present invention.

[0047] Embodiment 1

[0048] like Figure 1-7The shown shaking mechanism includes a machine head, a driving mechanism 3 and a balancing assembly, wherein the machine head includes a left and right shaking bracket 1 and an up and down shaking bracket assembly 2 rotatably connected to the left and right shaking bracket 1; the up and down shaking bracket assembly 2 includes an up and down shaking main body 21 and a first shell 23 located on one side of the left and right shaking bracket 1; the driving mechanism 3 includes a left and right driving assembly and an up and down driving assembly; the up and down driving assembly is arranged on one side of the left and right shaking bracket 1 and is transmission-connected to the first shell 23 to drive the up and down shaking bracket assembly 2 to rotate up and down relative to the left and right shaking bracket 1; the left and right driving assembly is used to drive the left and right shaking bracket 1 to rotate left and right; the balancing assembly is arranged on the other side of the left and right shaking bracket 1 and includes at least an elastic member, one end of the elastic member is connected to the left and right shaking bracket 1, and the other end is connected to the up and down shaking main body 21 and elastically supported on the up and down shaking main body 21; wherein, when the up and down driving assembly drives the up and down shaking bracket assembly 2 to rotate downward relative to the left and right shaking bracket 1, the up and down shaking bracket assembly 2 compresses the elastic member; when the up and down driving assembly drives the up and down shaking bracket assembly 2 to rotate upward relative to the left and right shaking bracket 1, the elastic member releases the elastic force and drives the up and down shaking bracket assembly 2 to rotate upward.

[0049] Based on the above structure, in the shaking head mechanism of the utility model, the upper and lower driving components are arranged on one side of the left and right shaking head brackets 1 and are transmission-connected to the first shell 23; the balancing component is arranged on the other side of the left and right shaking head brackets 1 and includes at least an elastic member, one end of the elastic member is connected to the left and right shaking head brackets 1, and the other end is connected to the upper and lower shaking head body 21 and is elastically supported on the upper and lower shaking head body 21.

[0050] Specifically, when the up and down driving assembly drives the up and down shaking head bracket assembly 2 to rotate downward from the highest position to the horizontal position relative to the left and right shaking head bracket 1, the gravity force on the up and down shaking head bracket assembly 2 gradually increases. At the same time, the up and down driving assembly is subjected to resistance to overcome the gravity force of the up and down shaking head bracket assembly 2, and the up and down shaking head bracket assembly 2 compresses the elastic part. The elastic force of the elastic part will partially or completely offset the gravity force generated by the up and down shaking head bracket assembly 2. At this time, the elastic force of the elastic part and the resistance force on the up and down driving assembly balance the gravity force on the up and down shaking head bracket assembly 2, thereby reducing the driving force of the up and down driving assembly.

[0051] When the up and down driving assembly drives the up and down shaking head bracket assembly 2 to rotate downward from the horizontal position to the lowest position relative to the left and right shaking head bracket 1, the gravity force on the up and down shaking head bracket assembly 2 gradually decreases, and the elastic force applied by the elastic member on the up and down shaking head bracket assembly 2 gradually increases and reaches a maximum value at the lowest position, and the elastic force will be partially or completely used to offset the gravity force generated by the up and down shaking head bracket assembly 2. At this time, the elastic force of the elastic member balances the resistance of the up and down driving assembly to overcome the elastic force of the elastic member and the gravity force on the up and down shaking head bracket assembly 2, thereby reducing the driving force of the up and down driving assembly.

[0052] When the up and down driving assembly drives the up and down shaking head bracket assembly 2 to rotate upward relative to the left and right shaking head bracket 1 from the lowest position to the horizontal position, the elastic part releases the elastic force and drives the up and down shaking head bracket assembly 2 to rotate upward, and part or all of the elastic force is used to offset the gravity generated by the up and down shaking head bracket assembly 2. At this time, the elastic force of the elastic part partially or not provides driving force for the up and down driving assembly, thereby reducing the resistance of the up and down driving assembly to overcome the gravity of the up and down shaking head bracket assembly 2, and then reducing the driving force of the up and down driving assembly.

[0053] When the up and down driving assembly drives the up and down shaking head bracket assembly 2 to rotate upward from the horizontal position to the highest position relative to the left and right shaking head bracket 1; the elastic force released by the elastic part is completely used to offset the gravity generated by the up and down shaking head bracket assembly 2, so as to reduce the resistance applied to the up and down driving assembly by the gravity of the up and down shaking head bracket assembly 2, thereby reducing the driving force of the up and down driving assembly.

[0054] Therefore, the elastic force generated by the elastic part will partially or completely offset the gravity generated by the upper and lower shaking bracket assembly 2, so that the driving force of the upper and lower driving assembly to drive the upper and lower shaking bracket assembly 2 to rotate becomes smaller, so the requirements for the upper and lower driving assembly are relatively low; in addition, since the balancing assembly is arranged on the other side of the left and right shaking brackets 1, the force of the entire fan is balanced, ensuring the rotation stability of the upper and lower shaking bracket assembly 2, avoiding the occurrence of adverse phenomena such as shaking, and greatly improving the user experience.

[0055] It should be noted that, in this embodiment, when the upper and lower shaking bracket assembly 2 rotates upward to the highest position, the elastic member is pre-compressed or installed without compression to the other side of the left and right shaking brackets 1 and connected to the upper and lower shaking body 21.

[0056] Furthermore, the balancing assembly also includes a second shell 22 connected to the upper and lower shaking head body 21 and located on the other side of the left and right shaking head bracket 1, and a first rotating sleeve 121. The elastic member is a torsion spring 4, and the torsion spring 4 includes a torsion spring body 41, a first torsion arm 42 arranged at one end of the torsion spring body 41, and a second torsion arm 43 arranged at the other end of the torsion spring body 41; a first fixed plate 12 is provided on one side of the left and right shaking head bracket 1, and the first rotating sleeve 121 is fixedly connected to the first fixed plate 12; the torsion spring body 41 is sleeved on the first rotating sleeve 121, and the first torsion arm 42 is fixed to the first rotating sleeve 121, and the second torsion arm 43 is fixed to the second shell 22.

[0057] It should be noted that, in the present embodiment, when the second torsion arm 43 is fixed to the second shell 22, the second shell 22 is rotationally connected to the first rotating sleeve 121, and a first pressure plate 224 is fixedly connected to the first rotating sleeve 121 to prevent the second shell 22 from falling off the first rotating sleeve 121, thereby improving the firmness of the connection between the second shell 22 and the first rotating sleeve 121, and at the same time also improving the stability of the rotational connection between the second shell 22 and the first rotating sleeve 121.

[0058] Among them, the first rotating sleeve 121 is provided with a clamping rib 1212 and a sliding column 1211, the second shell 22 is provided with a protruding column 222 and a limiting groove 223, the first torsion arm 42 is fixed to the clamping rib 1212, and the second torsion arm 43 is fixed to the protruding column 222; the sliding column 1211 is clamped in the limiting groove 223 and can slide in the limiting groove 223 to limit the up and down rotation range of the up and down shaking bracket assembly 2.

[0059] It should be noted that, in the present embodiment, when the up and down shaking head bracket assembly 2 rotates upward to the highest position, the torsion spring 4 pre-compresses or does not compress the first torsion arm 42 and the second torsion arm 43, and then the torsion spring body 41 is mounted on the first rotating sleeve 121, the first torsion arm 42 is fixed to the clamping rib 1212, and the second torsion arm 43 is fixed to the protruding column 222 to achieve installation. Thus, the up and down shaking head bracket assembly 2 is subjected to or not subjected to the elastic force of the torsion spring 4 when it is in the highest position.

[0060] Specifically, the second shell 22 is also provided with a second decorative cover 221 for decoration, and the first shell 23 of the up and down shaking head bracket assembly 2 is also provided with a first decorative cover 231 for decoration, wherein the second shell 22 and the first shell 23 are fixedly connected to the up and down shaking head main body 21 by fasteners, and the second shell 22 on the other side is provided with a boss 222, a limiting groove 223 and a boss, and the boss is rotatably connected to the first rotating sleeve 121 so that the other side of the up and down shaking head bracket assembly 2 is rotatably connected to the other side of the left and right shaking head bracket 1, and when the boss is rotatably connected to the first rotating sleeve 121, the second torsion arm 43 of the torsion spring 4 is hung on the boss 222 to achieve fixation with the second shell 22, and at the same time, the sliding column 1211 on the first rotating sleeve 121 is clamped in the limiting groove 223, and when the up and down shaking head bracket assembly 2 rotates relative to the left and right shaking head bracket 1, the sliding column 1211 slides in the limiting groove 223 to limit the range of up and down rotation of the up and down shaking head bracket assembly 2.

[0061] Furthermore, the up and down driving assembly includes a first driving motor 32 and a first driving gear 321 arranged on the left and right shaking head bracket 1, and a first transmission gear 232 is provided on the first shell 23; the first driving gear 321 is arranged on the output shaft of the first driving motor 32, and is meshed with the first transmission gear 232 for transmission; when the first driving motor 32 is used to drive the first driving gear 321 to rotate, it drives the first transmission gear 232 to rotate, so that the first shell 23 rotates, thereby realizing the up and down rotation of the up and down shaking head bracket assembly 2 relative to the left and right shaking head bracket 1.

[0062] Specifically, a first transmission gear 232 is provided on the first shell 23 on one side of the up and down shaking bracket assembly 2. When the first drive motor 32 is used to drive the first drive gear 321 to rotate, it drives the first transmission gear 232 to rotate, and then drives one side of the up and down shaking bracket assembly 2 to rotate up and down relative to the left and right shaking bracket 1. Since the second shell 22 on the other side of the up and down shaking bracket assembly 2 is rotatably connected to the first rotating sleeve 121 through a boss, the first drive motor 32 drives the first transmission gear 232 to rotate so that the up and down shaking bracket assembly 2 rotates up and down relative to the left and right shaking bracket 1.

[0063] Furthermore, a second fixed plate 13 is provided on one side of the left and right shaking bracket 1, and the first drive motor 32 is arranged on the second fixed plate 13, and the output shaft of the first drive motor 32 passes through the second fixed plate 13 and is connected to the first drive gear 321; a second rotating sleeve 131 is fixedly connected to the second fixed plate 13, and the second rotating sleeve 131 is rotatably connected to the first transmission gear 232 on the first shell 23.

[0064] It should be noted that, in the present embodiment, when the second rotating sleeve 131 is rotationally connected with the first transmission gear 232, a second pressure plate 233 is fixedly connected to the second rotating sleeve 131 to prevent the first shell 23 from falling off the second rotating sleeve 131, thereby ensuring the meshing connection between the first transmission gear 232 and the first driving gear 321, and also improving the firmness of the connection between the first shell 23 and the second rotating sleeve 131, thereby improving the stability of the rotational connection between the first shell 23 and the second rotating sleeve 131.

[0065] Furthermore, it also includes a supporting component 5, and the left and right driving components include a second driving motor 31 and a second driving gear 311 arranged on the left and right shaking head bracket 1, and a second transmission gear 511 is provided on the supporting component 5; the second driving gear 311 is arranged on the output shaft of the second driving motor 31, and is meshed with the second transmission gear 511 for transmission; the second driving motor 31 is used to drive the second driving gear 311 to rotate around the second transmission gear 511, so that the left and right shaking head bracket 1 rotates left and right relative to the supporting component 5.

[0066] Specifically, a receiving cavity is provided inside the left and right shaking bracket 1, and a connecting plate 11 is provided in the receiving cavity. The second driving motor 31 is arranged on the connecting plate 11 and located in the receiving cavity. The first driving motor 32 is arranged on the second fixing plate 13 and located on one side of the receiving cavity.

[0067] Furthermore, the supporting component 5 includes a connecting shaft 51, and the second transmission gear 511 is arranged on the top of the connecting shaft 51 and is located inside the left and right shaking bracket 1; a through hole 14 is opened at the bottom of the left and right shaking bracket 1, and the bottom end of the connecting shaft 51 passes through the through hole 14 and extends out of the left and right shaking bracket 1.

[0068] It should be noted that the second transmission gear 511 is provided with a first protrusion 5111 and a second protrusion 5112. When the second drive motor 31 drives the second drive gear 311 to rotate around the second transmission gear 511, the second drive gear 311 abuts against the first protrusion 5111 or the second protrusion 5112 to achieve limiting, thereby limiting the angle range of left and right shaking bracket 1.

[0069] Furthermore, the supporting component 5 also includes a column joint 53 and a sleeve 52, and the sleeve 52 is sleeved on the outside of the column joint 53; a slot adapted to the bottom end of the connecting shaft 51 is opened at the top of the column joint 53, and the bottom end of the connecting shaft 51 is plug-in connected to the slot to fix the connecting shaft 51 and the column joint 53.

[0070] Embodiment 2

[0071] like Figure 8-9 The circulating fan shown includes the shaking head mechanism of the above-mentioned embodiment 1, and also includes a fan assembly arranged on the upper and lower shaking head main body 21. The fan assembly includes a fan motor 211 and fan blades 83. The fan blades 83 are arranged on the output shaft of the fan motor 211, and when the fan motor 211 rotates, the fan blades 83 are driven to rotate and blow air.

[0072] Furthermore, it also includes a base 7 and a column 6 , one end of the column 6 is fixedly connected to the column joint 53 , and the other end thereof is fixedly connected to the base 7 .

[0073] Specifically, the fan assembly also includes a motor front cover 24 and a motor fixing plate 212, wherein the fan motor 211 is installed on the upper and lower shaking head body 21 of the upper and lower shaking head bracket assembly 2 through the motor fixing plate 212, and is connected to the upper and lower shaking head body 21 through the motor front cover 24 to avoid the motor being exposed to the outside. Secondly, a mesh cover assembly for protecting the fan blades 83 is provided on the outside of the fan blades 83, and the mesh cover assembly also prevents the fan blades 83 from interfering with users or objects and causing danger; wherein the mesh cover assembly includes a front mesh cover 84, a middle frame 81 and a rear mesh cover 8. During installation, the rear mesh cover 8 and the motor front cover 24 are fixed by mesh cover nuts 82, the fan blades 83 are mounted on the output shaft of the fan motor 211 and are fastened by blade nuts 85, and the middle frame 81 and the front mesh cover 84 are fixed on the rear mesh cover 8 in sequence to cover the fan blades 83.

[0074] It should be noted that, in this embodiment, a control board for controlling the first drive motor 32 and the second drive motor 31 is also provided. The control board can control the forward and reverse rotation angle range of the first drive motor 32 and the second drive motor 31 to achieve the control of the rotation range of the up and down shaking and the left and right shaking, thereby satisfying the user's selection of different shaking angles and thus improving the user's experience.

[0075] To sum up, the shaking head mechanism of the utility model and the circulating fan having the same, by setting the torsion spring 4, when the first drive motor 32 drives the up and down shaking head bracket assembly 2 to rotate downward relative to the left and right shaking head bracket 1, the up and down shaking head bracket assembly 2 compresses the torsion spring 4; when the first drive motor 32 drives the up and down shaking head bracket assembly 2 to rotate upward relative to the left and right shaking head bracket 1; the torsion spring 4 releases the elastic force and drives the up and down shaking head bracket assembly 2 to rotate upward; the elastic force generated by the elastic member will partially or completely offset the gravity generated by the up and down shaking head bracket assembly 2, so that the driving force of the first drive motor 32 to drive the up and down shaking head bracket assembly 2 to rotate becomes smaller, so the requirements for the first drive motor 32 are lower; in addition, since the balancing assembly is arranged on the other side of the left and right shaking head bracket 1, the force of the entire fan is balanced, ensuring the rotation stability of the up and down shaking head bracket assembly 2, avoiding the occurrence of adverse phenomena such as shaking, and greatly improving the user experience.

[0076] And the driving method adopts gear transmission to increase the shaking angle and shaking range, so as to satisfy the users to choose different shaking angles according to the number of people; secondly, the elastic force of the torsion spring 4 is applied to the up and down shaking bracket assembly 2, and the up and down shaking bracket assembly 2 overcomes the elastic force of the torsion spring 4 to balance the gravity generated by the up and down shaking bracket assembly 2 and the resistance of the first driving motor 32, thereby reducing the sense of frustration transmitted to the shaking mechanism when the first driving motor 32 is reversed, and avoiding the adverse phenomena such as shaking caused by the unstable up and down shaking, thereby improving the stability of the up and down shaking bracket assembly 2 when rotating relative to the left and right shaking bracket 1.

[0077] It should be noted that when an element is referred to as being "fixed to" or "disposed on" another element, it can be directly on the other element or indirectly on the other element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or indirectly connected to the other element.

[0078] It should be understood that the orientations or positional relationships indicated by the terms "top", "bottom", "inside", "outside", etc. are based on the orientations or positional relationships shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the modules or elements referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0079] In addition, in the description of the present utility model, "multiple" and "several" mean two or more than two, unless otherwise clearly and specifically defined.

[0080] The technical means disclosed in the solution of the utility model are not limited to the technical means disclosed in the above-mentioned implementation mode, but also include technical solutions composed of any combination of the above technical features. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the principle of the utility model, and these improvements and modifications are also regarded as the protection scope of the utility model.

Claims

1. A shaking mechanism, characterized in that: include: The machine head comprises a left and right shaking bracket and an up and down shaking bracket assembly rotatably connected to the left and right shaking bracket; the up and down shaking bracket assembly comprises an up and down shaking main body and a first shell located at one side of the left and right shaking bracket; The driving mechanism comprises a left-right driving assembly and an up-down driving assembly; the up-down driving assembly is arranged on one side of the left-right shaking bracket and is in driving connection with the first shell to drive the up-down shaking bracket assembly to rotate up and down relative to the left-right shaking bracket; the left-right driving assembly is used to drive the left-right shaking bracket to rotate left and right; A balancing component, which is arranged on the other side of the left and right shaking brackets and comprises at least an elastic member, one end of which is connected to the left and right shaking brackets, and the other end of which is connected to the up and down shaking body and elastically supported by the up and down shaking body; Among them, when the up and down driving assembly drives the up and down shaking head bracket assembly to rotate downward relative to the left and right shaking head bracket, the up and down shaking head bracket assembly compresses the elastic part; when the up and down driving assembly drives the up and down shaking head bracket assembly to rotate upward relative to the left and right shaking head bracket, the elastic part releases the elastic force and drives the up and down shaking head bracket assembly to rotate upward.

2. The oscillating mechanism according to claim 1, characterized in that: The balancing assembly also includes a second shell connected to the up and down shaking body and a first rotating sleeve, the elastic member is a torsion spring, and the torsion spring includes a torsion spring body, a first torsion arm arranged at one end of the torsion spring body, and a second torsion arm arranged at the other end of the torsion spring body; A first fixing plate is provided on one side of the left and right shaking bracket, and the first rotating sleeve is fixedly connected to the first fixing plate; The torsion spring body is sleeved on the first rotating sleeve, the first torsion arm is fixed to the first rotating sleeve, and the second torsion arm is fixed to the second shell.

3. The oscillating mechanism according to claim 2, characterized in that: The first rotating sleeve is provided with a clamping rib and a sliding column, the second housing is provided with a convex column and a limiting groove, the first torsion arm is fixed to the clamping rib, and the second torsion arm is fixed to the convex column; The sliding column is clamped in the limiting groove and can slide in the limiting groove to limit the range of the up and down shaking bracket assembly.

4. The shaking mechanism according to any one of claims 1 to 3, characterized in that: The up-and-down driving assembly includes a first driving motor and a first driving gear, and the first housing is provided with a first transmission gear; The first driving gear is arranged on the output shaft of the first driving motor and meshes with the first transmission gear for transmission; The first driving motor is used to drive the first driving gear to rotate, thereby driving the first transmission gear to rotate, so that the first shell rotates, thereby realizing the up and down rotation of the up and down shaking bracket assembly relative to the left and right shaking brackets.

5. The oscillating mechanism according to claim 4, characterized in that: A second fixing plate is provided on one side of the left and right shaking bracket, the first driving motor is arranged on the second fixing plate, and the output shaft of the first driving motor passes through the second fixing plate and is connected to the first driving gear; A second rotating sleeve is fixedly connected to the second fixed plate, and the second rotating sleeve is rotatably connected to the first transmission gear.

6. The shaking head mechanism according to any one of claims 1 to 3, characterized in that: It also includes a supporting component, the left and right driving assembly includes a second driving motor and a second driving gear arranged on the left and right shaking brackets, and the supporting part is provided with a second transmission gear; The second driving gear is arranged on the output shaft of the second driving motor and meshes with the second transmission gear for transmission; The second driving motor is used to drive the second driving gear to rotate around the second transmission gear, so that the left and right shaking bracket rotates left and right relative to the supporting component.

7. The shaking mechanism according to claim 6, characterized in that: The supporting component comprises a connecting shaft, and the second transmission gear is arranged on the top of the connecting shaft and is located in the left and right shaking brackets; A through hole is provided at the bottom of the left and right shaking bracket, and the bottom end of the connecting shaft passes through the through hole and extends out of the left and right shaking bracket.

8. The oscillating mechanism according to claim 7, characterized in that: The support component also includes a column joint and a shaft sleeve, and the shaft sleeve is sleeved on the outside of the column joint; A slot adapted to the bottom end of the connecting shaft is provided on the top of the column joint, and the bottom end of the connecting shaft is plug-connected with the slot to fix the connecting shaft to the column joint.

9. A circulating fan, characterized in that: It includes the shaking head mechanism described in any one of claims 1-8, and also includes a fan assembly arranged on the upper and lower shaking head body, the fan assembly includes a fan motor and fan blades, the fan blades are arranged on the output of the fan motor, and drive the fan blades to rotate and blow air when the fan motor rotates.

10. The circulation fan according to claim 9, characterized in that: It also includes a base and a column, one end of the column is fixedly connected to the column joint, and the other end of the column is fixedly connected to the base.

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