Rotating mechanism and fan

Abstract

This invention discloses a rotating mechanism and a fan, relating to the technical field of mechanical rotating components. The rotating mechanism includes a first connecting member, a second connecting member, a driving device, and a spring assembly. The first connecting member has a first rib; the second connecting member has a second rib, the plane of which is parallel to or coincides with the plane of the first rib; the driving device connects the first and second ribs and drives the second connecting member to rotate relative to the first connecting member in a vertical direction; the spring assembly includes a compression spring, a first support member, and a second support member, the two ends of which are connected to or abut against the first and second support members respectively. The first support member is rotatably connected to the first connecting member, and the second support member is rotatably connected to the second connecting member. The technical solution provided by this invention aims to enable the rotating mechanism to provide a more stable steering driving force, further improving the practicality and reliability of the rotating mechanism.

Description

Technical Field

[0001] This invention relates to the field of mechanical rotating components, and in particular to a rotating mechanism and a fan. Background Technology

[0002] In related technologies, mechanical equipment such as robotic arms, bionic robots, cranes, and fans are usually equipped with a rotating mechanism to connect the main body of the equipment and the parts that need to be rotated. The rotating mechanism drives the parts that need to be rotated to rotate relative to the main body of the equipment, thereby achieving stable operation of the mechanical equipment. For example, the rotating mechanism drives the arm of a robotic arm or bionic robot to rotate, the rotating mechanism drives the boom of a crane to rotate, and the rotating mechanism drives the fan assembly of a fan to oscillate up and down, etc.

[0003] However, existing rotating mechanisms typically require high-power drive motors to ensure stable driving force for the rotating parts of mechanical equipment. This results in a large overall structural size of the rotating mechanism, which cannot well meet the structural layout requirements of miniaturized mechanical equipment, thus reducing the practicality and structural reliability of the rotating mechanism. Summary of the Invention

[0004] The main objective of this invention is to propose a rotating mechanism and a fan, which aims to improve the overall structural design of the rotating mechanism so that it can provide a more stable steering driving force and better achieve a miniaturized design, thereby further improving the practicality and reliability of the rotating mechanism.

[0005] To achieve the above objectives, the rotating mechanism proposed in this invention includes a first connecting member, a second connecting member, a driving device, and an elastic component. The first connecting member is provided with a first rib; the second connecting member is provided with a second rib, the plane of which the second rib is located is parallel to or coincides with the plane of which the first rib is located; the driving device connects the first rib and the second rib and drives the second connecting member to rotate relative to the first connecting member in the up-down direction; the elastic component includes a compression spring, a first support member, and a second support member, the two ends of which are respectively connected to or abut against the first support member and the second support member, the first support member is rotatably connected to the first connecting member, and the second support member is rotatably connected to the second connecting member.

[0006] In one embodiment, the first rib has a groove on the side facing the second connector, the groove being arc-shaped, and the first support has an arc-shaped protrusion on the side facing away from the compression spring, the arc-shaped protrusion being rotatably disposed in the groove and abutting against the inner wall of the groove.

[0007] In one embodiment, the first support member includes a base plate and a support rod. The arc-shaped protrusion and the support rod are respectively connected to two opposite surfaces of the base plate. The compression spring is sleeved on the outer periphery of the support rod and spaced apart from the outer periphery of the support rod. One end of the compression spring is connected to or abuts against the base plate. The second support member is provided with a clearance hole, through which the support rod is movably disposed.

[0008] In one embodiment, the elastic extension amount of the compression spring is defined as W, and the gap between the inner wall of the compression spring and the outer wall of the support rod is defined as L, where 0.001 ≤ L / W ≤ 0.1. And / or, the bottom plate has two spaced-apart opposing limiting baffles on its surface facing away from the support rod, the arc-shaped protrusion is located between the two limiting baffles, and the two limiting baffles respectively abut against the opposite sides of the first rib.

[0009] In one embodiment, in a direction perpendicular to the plane of the second rib, the two opposite sides of the second support member are respectively provided with connecting shafts; the second rib is provided with a receiving space, and the two opposite inner walls of the second rib in the receiving space are respectively provided with connecting holes; at least a part of the structure of the second support member is rotatably disposed in the receiving space, and the two connecting shafts are respectively rotatably inserted into the two connecting holes.

[0010] In one embodiment, the second rib includes a main body plate and a mounting sleeve. The mounting sleeve is connected to one side of the main body plate and has the receiving space. The mounting sleeve has the connecting hole on the side facing the first connector. Alternatively, the second rib includes a first plate and a second plate, which are spaced apart from each other, forming the receiving space. The connecting hole is provided on the facing surfaces of the first plate and the second plate, respectively.

[0011] In one embodiment, the first rib is provided with either a limiting block or a limiting groove, and the second rib is provided with either a limiting block or a limiting groove. The limiting groove extends along the rotation direction of the second connector, and the limiting block is disposed in the limiting groove and can abut against the two opposite inner sidewalls of the limiting groove for limiting.

[0012] In one embodiment, the first connector is provided with two first ribs, which are arranged opposite each other at a distance. The second connector is provided with two second ribs, which are arranged opposite each other at a distance. Each second rib is configured to cooperate with one of the first ribs.

[0013] In one embodiment, the drive device is mounted on one of the first ribs and one of the second ribs that cooperate, and the elastic component is mounted on another of the first ribs and another of the second ribs that cooperate.

[0014] In one embodiment, the driving device includes a rotating shaft assembly and a drive motor. The rotating shaft assembly passes through and connects the first rib and the second rib. The drive motor is connected to the first rib and / or the second rib and drives the second connecting member to rotate relative to the first connecting member.

[0015] In one embodiment, the drive motor is mounted on the first rib, the rotating shaft of the drive motor is connected to a drive wheel, the second rib has a transmission rack on its surface facing the first rib, the transmission rack extends along the rotation direction of the second connector, and the drive wheel meshes with the transmission rack.

[0016] In one embodiment, the rotating shaft assembly includes a bushing, a shaft body, and a bearing. The bushing is disposed between the first rib and the second rib and connects the first rib and / or the second rib. The bushing has a fixing groove, and the bearing is fixedly disposed in the fixing groove. The shaft body passes through the first rib, the bushing, and the second rib, and the bearing is sleeved on the outer periphery of the shaft body.

[0017] The present invention also proposes a fan, the fan comprising a rotating mechanism and a fan assembly, the rotating mechanism being the aforementioned rotating mechanism, the rotating mechanism being used to drive the fan assembly to swing in the up-down direction.

[0018] The technical solution of this invention provides a spring component between the first and second connecting members. When the second connecting member rotates relative to the first connecting member in a direction away from it, the spring component provides elastic support, which can offset part of the weight of the component connected to the second connecting member. This reduces the power output requirement of the drive device, allowing the rotating mechanism to drive the second connecting member and rotate a component of a certain weight using a smaller power drive device, facilitating miniaturization of the rotating mechanism. Specifically, the spring component can use a compression spring as the main elastic force source. When the second connecting member rotates towards the first connecting member, the weight of the second connecting member compresses the spring, storing elastic potential energy. When the drive device drives the second connecting member to rotate away from the first connecting member, the spring recovers its deformation and releases the elastic potential energy. At this time, the direction of the elastic force applied by the spring to the second connecting member is opposite to the direction of the weight of the second connecting member, thus offsetting part of the weight of the second connecting member and reducing the power output requirement of the drive device. By rotatably connecting the first and second support members at both ends of the compression spring to the first and second connecting members respectively, the compression spring can stably undergo elastic expansion and contraction along a straight line, preventing the compression spring from shifting during expansion and contraction. This allows the compression spring to provide better elastic support to the second connecting member, further improving the practicality and structural reliability of the rotating mechanism. Attached Figure Description

[0019] To more clearly illustrate the technical solutions in the embodiments of the present invention 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 the present invention. For those skilled in the art, other drawings can be obtained based on the structures shown in these drawings without creative effort.

[0020] Figure 1 A schematic diagram of an embodiment of the rotating mechanism provided by the present invention;

[0021] Figure 2 for Figure 1 An exploded view of the structure of one embodiment of the rotating mechanism;

[0022] Figure 3 for Figure 1 An exploded view of the rotating mechanism from another perspective;

[0023] Figure 4 for Figure 1 A cross-sectional view of an embodiment of the rotating mechanism;

[0024] Figure 5 for Figure 4A magnified view of a section at point A in the middle;

[0025] Figure 6 for Figure 1 A cross-sectional view of another embodiment of the rotating mechanism;

[0026] Figure 7 for Figure 1 A cross-sectional view of another embodiment of the rotating mechanism;

[0027] Figure 8 for Figure 1 An exploded view of the structure of an embodiment of the elastic component of the rotating mechanism;

[0028] Figure 9 This is a schematic diagram of a fan according to an embodiment of the present invention;

[0029] Figure 10 for Figure 9 A cross-sectional view of an embodiment of a fan;

[0030] Figure 11 for Figure 10 A magnified view of a section at point B in the middle;

[0031] Figure 12 for Figure 9 A schematic diagram of the structure of an embodiment of the rotating mechanism and the translating mechanism of a fan;

[0032] Figure 13 for Figure 12 A magnified view of a section at point C.

[0033] Explanation of icon numbers:

[0034] 100. Rotating mechanism; 10. First connecting member; 11. First rib; 111. Groove; 113. Limiting block; 30. Second connecting member; 31. Second rib; 311. Main body plate; 3111. Limiting slot; 3113. Transmission rack; 313. Mounting sleeve; 3131. Connecting hole; 315. Cable routing hole; 317. Cable passage groove; 319. Cable baffle plate; 33. Seat plate; 331. Cable passage hole; 50. Drive device; 51. Rotating shaft assembly; 511. Bushing; 5111. Fixing groove; 513 515. Shaft; 53. Bearing; 531. Drive motor; 531. Drive wheel; 70. Elastic assembly; 71. Compression spring; 73. First support member; 731. Base plate; 7311. Arc-shaped protrusion; 7313. Limiting baffle; 733. Support rod; 75. Second support member; 751. Clearance hole; 753. Connecting shaft; 23. Horizontal rotation mechanism; 231. First column; 233. Second column; 235. Steering motor; 237. Power connector; 41. Fan body; 43. Fan blade; 1000. Fan.

[0035] The realization of the objective, functional features and advantages of the present invention will be further explained in conjunction with the embodiments and with reference to the accompanying drawings. Detailed Implementation

[0036] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of the present invention.

[0037] It should be noted that if the embodiments of the present invention involve directional indicators (such as up, down, left, right, front, back, etc.), the directional indicators are only used to explain the relative positional relationship and movement of the components in a specific posture. If the specific posture changes, the directional indicators will also change accordingly.

[0038] Furthermore, if the embodiments of this invention involve descriptions such as "first" or "second," these descriptions are for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined with "first" or "second" may explicitly or implicitly include at least one of those features. Additionally, the use of "and / or" or "and / or" throughout the text includes three parallel solutions. For example, "A and / or B" includes solution A, solution B, or a solution where both A and B are satisfied simultaneously. Furthermore, the technical solutions of the various embodiments can be combined with each other, but this must be based on the ability of those skilled in the art to implement them. When the combination of technical solutions is contradictory or impossible to implement, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection claimed by this invention.

[0039] In related technologies, mechanical devices such as robotic arms, bionic robots, cranes, and fans typically incorporate a rotating mechanism to connect the main body of the device with the rotating component. This mechanism drives the rotating component to rotate relative to the main body, achieving stable operation of the machine. For example, a rotating mechanism can be used to rotate the arm of a robotic arm or bionic robot, the boom of a crane, or the fan assembly of a fan to oscillate up and down. However, existing rotating mechanisms usually require high-powered drive motors to provide stable driving force to the rotating components, resulting in a large overall structural size that fails to meet the structural layout requirements of miniaturized mechanical devices, reducing the practicality and structural reliability of the rotating mechanism. To address these issues, this invention proposes a rotating mechanism.

[0040] Please see Figures 1 to 3 In one embodiment of the present invention, the rotating mechanism 100 includes a first connecting member 10, a second connecting member 30, a driving device 50, and an elastic component 70. The first connecting member 10 is provided with a first rib 11; the second connecting member 30 is provided with a second rib 31, and the plane of the second rib 31 is parallel to or coincides with the plane of the first rib 11; the driving device 50 connects the first rib 11 and the second rib 31, and drives the second connecting member 30 to rotate relative to the first connecting member 10 in the up-down direction; the elastic component 70 includes a compression spring 71, a first support member 73, and a second support member 75. The two ends of the compression spring 71 are respectively connected to or abut against the first support member 73 and the second support member 75. The first support member 73 is rotatably connected to the first connecting member 10, and the second support member 75 is rotatably connected to the second connecting member 30.

[0041] In this application, the first rib 11 can refer to a plate-like structure disposed on the first connector 10, specifically implemented using a metal stamping part or a bent sheet metal part, etc., to provide structural support and an installation interface. The second rib 31 can refer to a corresponding plate-like structure disposed on the second connector 30, specifically implemented using a metal stamping part or a bent sheet metal part, etc., and its planar arrangement ensures a stable relative motion trajectory with the first rib 11, ensuring the relative rotation between the first connector 10 and the second connector 30. The drive device 50 can refer to a power output unit, specifically implemented using a stepper motor with a reduction gear set, or using a servo motor, etc. This application does not limit the specific structural form of the drive device 50, as long as it can achieve stable kinetic energy output. The compression spring 71 in the elastic component 70 can be a helical spring element, specifically made of carbon spring steel wire, which can store a certain amount of mechanical energy through elastic deformation and release the mechanical energy when restoring elastic deformation. The first support member 73 and the second support member 75 can respectively refer to load-bearing components with rotating joints, used to transmit the force of the compression spring 71 and allow rotational freedom, so that the compression spring 71 can stably extend and retract in a straight line when the first connecting member 10 and the second connecting member 30 rotate relative to each other, ensuring the supporting effect of the elastic component 70 on the second connecting member 30.

[0042] Specifically, when the drive device 50 drives the second connecting member 30 to rotate, the angle between the first connecting member 10 and the second connecting member 30 changes, and the change in the relative position between the two connecting members causes the elastic component 70 to deform. The rotational connection between the two supports ensures that the compression spring 71 can elastically compress or stretch along a straight line between the first connecting member 10 and the second connecting member 30, effectively preventing the compression spring 71 from bending during deformation and reducing the elastic force loss of the compression spring 71 during deformation, allowing the compression spring 71 to more fully absorb or release energy during compression or stretching. This energy conversion process effectively distributes the direct load of the drive device 50, allowing a smaller power drive motor 53 to be selected while maintaining the same rotational torque. Simultaneously, the parallel or overlapping arrangement of the two ribs ensures the stability of the rotation trajectory and avoids additional frictional losses caused by structural misalignment.

[0043] In this way, the driving device 50 can drive the second connecting member 30 to rotate closer to the first connecting member 10, so that when the angle between the first connecting member 10 and the second connecting member 30 decreases, the compression spring 71 will undergo a certain compression deformation under the action of the first connecting member 10 and the second connecting member 30, so that the compression spring 71 stores a certain amount of elastic mechanical energy. When the driving device 50 drives the second connecting member 30 to rotate away from the first connecting member 10, so that the angle between the first connecting member 10 and the second connecting member 30 increases, the compression spring 71 can be in a state of restoring elastic deformation. This is beneficial for the compression spring 71 to release the stored elastic mechanical energy onto the second connecting member 30, so that the compression spring 71 can apply a certain thrust to the second connecting member 30 in the direction away from the first connecting member 10. This is beneficial for the driving device 50 to output a lower driving power to the second connecting member 30. In other words, the driving device 50 can use a smaller power and smaller size driving motor 53 to ensure the stable operation of the rotating mechanism 100, and better meet the structural miniaturization design requirements of the rotating mechanism 100.

[0044] The technical solution of the present invention provides a spring component 70 between the first connector 10 and the second connector 30. When the second connector 30 rotates relative to the first connector 10 in a direction away from the first connector 10, the spring component 70 can provide a certain elastic support to the second connector 30. This elastic support can offset part of the weight of the component connected to the second connector 30, which helps to reduce the power output requirement of the drive device 50. This allows the rotating mechanism 100 to drive the second connector 30 to rotate a component of a certain weight using a drive device 50 with a smaller power, which facilitates the miniaturization design of the rotating mechanism 100. The elastic component 70 can use a compression spring 71 as the main elastic force source. When the second connecting member 30 rotates in a direction close to the first connecting member 10, the weight of the second connecting member 30 can be used to compress and deform the compression spring 71, so that the compression spring 71 stores a certain amount of elastic potential energy. Thus, when the driving device 50 drives the second connecting member 30 to rotate in a direction away from the first connecting member 10, the compression spring 71 can restore its deformation and release the elastic potential energy. At this time, the direction of the elastic force applied by the compression spring 71 to the second connecting member 30 is opposite to the direction of the weight of the second connecting member 30. The elastic force can be used to offset part of the weight of the second connecting member 30, reducing the demand for output power of the driving device 50. By rotatably connecting the first support member 73 and the second support member 75 at both ends of the compression spring 71 to the first connecting member 10 and the second connecting member 30 respectively, the compression spring 71 can stably undergo elastic expansion and contraction along a straight line, preventing the compression spring 71 from shifting during expansion and contraction, so that the compression spring 71 can provide better elastic support for the second connecting member 30, further improving the practicality and structural reliability of the rotating mechanism 100.

[0045] The elastic component 70 can be disposed between the first rib 11 and the second rib 31, so that the compression spring 71 can better compress or stretch during the relative rotation of the first connecting member 10 and the second connecting member 30, and ensure the stable support of the compression spring 71 for the second connecting member 30. The elastic component 70 can be disposed on the plane of the first rib 11, that is, the compression spring 71 and the first support member 73 and the second support member 75 connecting the two ends of the compression spring 71 can all be disposed on the plane of the first rib 11. The elastic extension and contraction direction of the compression spring 71 can be located at the center of the side wall of the first rib 11. At this time, the first support member 73 can be rotatably connected to the side of the first rib 11 facing the second connecting member 30, and the second support member 75 can be rotatably connected to the side of the second rib 31 facing the first connecting member 10. By adopting a design where the elastic component 70 is flush with the first rib plate 11, the compression spring 71 can move along a straight line better when it extends and retracts, and the offset of the compression spring 71 during extension and retraction can be reduced. This allows the elastic component 70 to provide more stable support for the second connecting member 30, further improving the practicality and structural reliability of the rotating mechanism 100.

[0046] See Figure 2 , Figure 6 and Figure 7 In one embodiment of the present invention, the first rib 11 is provided with a groove 111 on the side facing the second connector 30. The groove 111 is arc-shaped. The first support 73 is provided with an arc-shaped protrusion 7311 on the side facing away from the compression spring 71. The arc-shaped protrusion 7311 is rotatably disposed in the groove 111 and abuts against the inner wall of the groove 111.

[0047] In this embodiment, the groove 111 can refer to an arc-shaped recessed structure provided on the surface of the first rib 11, which can be formed by machining or casting processes, and is used to accommodate the arc-shaped protrusion 7311 and provide rotational guidance support. The arc-shaped protrusion 7311 can refer to an arc-shaped protrusion provided on the surface of the first support member 73, and can specifically adopt a structural design that matches the curvature of the groove 111. This reduces frictional resistance through rolling contact with the groove 111. Furthermore, by adjusting the radius of curvature of the arc-shaped protrusion 7311, it can maintain continuous contact with the inner wall of the groove 111 during relative rotation, thereby limiting the lateral displacement of the first support member 73, so that the compression spring 71 can better undergo compression or tension deformation along a straight line.

[0048] Specifically, when the second connector 30 rotates relative to the first connector 10, the first support 73 undergoes displacement changes through the rolling of the arc-shaped protrusion 7311 within the groove 111. The arc-shaped trajectory of the groove 111 can guide the first support 73 to rotate along a predetermined path. Furthermore, the continuous contact between the arc-shaped protrusion 7311 and the inner wall of the groove 111 can prevent the first support 73 from shifting during movement, ensuring sufficient contact and support between the first support 73 and the first rib 11, and ensuring that the elastic component 70 always extends and retracts in a straight line.

[0049] The design of the arc-shaped protrusion 7311 and the groove 111 enhances the anti-deflection capability of the first support 73, ensuring that the compression spring 71 always applies force along the axis during the extension and retraction process, reducing the elasticity loss of the compression spring 71, thereby extending the service life of the elastic component 70 and further improving the structural stability and reliability of the rotating mechanism 100.

[0050] See Figure 7 and Figure 8 In one embodiment of the present invention, the first support member 73 includes a base plate 731 and a support rod 733. The arc-shaped protrusion 7311 and the support rod 733 are respectively connected to two opposite surfaces of the base plate 731. The compression spring 71 is sleeved on the outer periphery of the support rod 733 and spaced apart from the outer periphery of the support rod 733. One end of the compression spring 71 is connected to or abuts against the base plate 731. The second support member 75 is provided with a clearance hole 751, through which the support rod 733 is movably disposed.

[0051] In this embodiment, the base plate 731 can refer to a plate-like structure that supports the support rod 733 and the arc-shaped protrusion 7311, and can be used to distribute the force on the compression spring 71 and maintain the verticality of the support rod 733. The support rod 733 can refer to a columnar component fixed on the base plate 731 and coaxially arranged with the compression spring 71, and can be used to limit the radial displacement of the compression spring 71 and provide a certain degree of support for the compression spring 71. The clearance hole 751 can refer to a through hole provided on the second support member 75, which allows the support rod 733 to slide axially through it when the second support member 75 rotates. There can be a certain annular gap between the compression spring 71 and the support rod 733 to avoid contact and friction between the compression spring 71 and the support rod 733 when the compression spring 71 extends and retracts, thereby better reducing the elasticity loss of the compression spring 71 and ensuring a more reliable support effect of the elastic component 70 on the second connecting member 30.

[0052] Specifically, when the second connecting member 30 rotates relative to the first connecting member 10, the first support member 73 and the second support member 75 move with the second connecting member 30, which can drive the support rod 733 to slide axially within the clearance hole 751. Under the guidance of the support rod 733, the compression spring 71 can more stably generate elastic deformation along a straight line, ensuring that the elastic force assembly 70 provides more reliable support for the second connecting member 30. The spacing between the support rod 733 and the compression spring 71 can effectively prevent the compression spring 71 from rubbing against the surface of the support rod 733 during compression or extension, reducing elastic force loss and allowing the elastic force assembly 70 to apply more sufficient elastic force to support the second connecting member 30. The rigid connection between the base plate 731 and the support rod 733 can better ensure that the extension and contraction direction of the compression spring 71 is consistent with the axis of the support rod 733, effectively avoiding the skew deformation of the compression spring 71, and further improving the overall structural stability and reliability of the rotating mechanism 100.

[0053] Through the above technical solution, this application can effectively reduce the elasticity loss of the compression spring 71 during the extension and contraction process, improve the energy transmission efficiency of the elastic component 70, and ensure the smoothness of the rotation process through the cooperation of the support rod 733 and the clearance hole 751. This structural design enables the rotating mechanism 100 to achieve efficient force transmission within a limited space, adapts to the compact layout requirements of miniaturized equipment, and better realizes the miniaturized design of the rotating mechanism 100, so that the rotating mechanism 100 can be adapted for use in more equipment.

[0054] In one embodiment of the present invention, the elastic extension amount of the compression spring 71 is defined as W, and the gap between the inner wall of the compression spring 71 and the outer wall of the support rod 733 is defined as L, where 0.001≤L / W≤0.1. And / or, the bottom plate 731 has two spaced-apart opposing limiting baffles 7313 on its surface opposite to the support rod 733, and an arc-shaped protrusion 7311 is disposed between the two limiting baffles 7313. The two limiting baffles 7313 are respectively disposed in abutment against the opposite sides of the first rib 11.

[0055] In this embodiment, the elastic extension W of the compression spring 71 refers to the maximum axial deformation of the compression spring 71 under stress. This can be achieved by adjusting the spring wire diameter or the number of coils. This parameter can be used to control the elastic potential energy reserve of the compression spring 71, so that the elastic component 70 can better match the power output required by the rotating mechanism 100. By establishing a certain proportional relationship between the gap L between the inner wall of the compression spring 71 and the outer wall of the support rod 733 and the elastic extension W of the compression spring 71, and setting L / W between 0.001 and 0.1, a more reliable fit structure design between the compression spring 71 and the support rod 733 can be achieved within this ratio range, allowing the elastic component 70 to better cooperate with the drive device 50 to drive the second connecting member 30 to rotate. Within this ratio range, the compression spring 71 can achieve a suitable elastic extension and contraction effect while avoiding the gap between the inner wall of the compression spring 71 and the outer wall of the support rod 733 being too small or too large. This helps to better avoid contact friction interference between the compression spring 71 and the support rod 733 during extension and contraction. At the same time, it can better avoid the possibility of the compression spring 71 shifting or tilting during extension and contraction due to an excessive gap between the compression spring 71 and the support rod 733. This allows the compression spring 71 to better undergo elastic extension and contraction along a straight line under the guiding support of the support rod 733, so that the elastic component 70 can make fuller use of the elastic force to assist in supporting the second connecting member 30, further improving the structural stability and reliability of the rotating mechanism 100.

[0056] In addition, refer to Figure 3 and Figure 6 In some embodiments, the limiting baffle 7313 can be a plate-like structure perpendicular to the base plate 731. Two opposing limiting baffles 7313 and the base plate 731 can form a certain groove structure, allowing part of the first rib 11 to be inserted into the groove. The arc-shaped protrusion 7311 engages with the groove 111 of the first rib 11 within the groove, thereby limiting the engagement between the arc-shaped protrusion 7311 and the groove 111. This better prevents the arc-shaped protrusion 7311 from sliding laterally out of the groove 111, further improving the stability and reliability of the rotational connection of the first support member 73 on the first rib 11, and ensuring the supporting effect of the elastic component 70 on the rotation of the second connector 30.

[0057] See Figures 2 to 4 In one embodiment of the present invention, in a direction perpendicular to the plane of the second rib 31, the two opposite sides of the second support member 75 are respectively provided with connecting shafts 753; the second rib 31 is provided with a receiving space, and the two opposite inner walls of the second rib 31 in the receiving space are respectively provided with connecting holes 3131; at least a part of the structure of the second support member 75 is rotatably disposed in the receiving space, and the two connecting shafts 753 are respectively rotatably inserted into the two connecting holes 3131.

[0058] In this embodiment, the connecting shaft 753 can refer to the cylindrical protrusions on both sides of the second support member 75, which are used to mate with the connecting holes 3131 of the second rib 31 to form a rotating pair. The connecting hole 3131 can refer to a through hole structure provided on the inner wall of the receiving space, the diameter of which matches the diameter of the connecting shaft 753 to achieve a clearance fit or a transition fit. The receiving space can be formed by stamping or modular assembly of the second rib 31, and can be used to accommodate at least a part of the structure of the second support member 75 to limit its displacement range, thereby achieving a stable rotational connection between the second support member 75 and the second rib 31.

[0059] Specifically, the second support member 75 is inserted into the connecting holes 3131 of the second rib plate 31 via connecting shafts 753 on both sides, forming a rotatable connection around the axis, thus achieving a stable rotatable connection between the second support member 75 and the second connector 30. The main body of the second support member 75 can be enclosed by the receiving space, so that its displacement range during rotation is limited by the side walls of the receiving space, effectively preventing the second support member 75 from detaching from the second rib plate 31, and achieving reliable support for the second connector 30 by the elastic component 70. When the second connector 30 rotates relative to the first connector 10, the second support member 75 rotates synchronously with the second connector 30, while the connecting shafts 753 rotate within the connecting holes 3131. Since the fit clearance between the connecting shaft 753 and the connecting hole 3131 is controlled within a reasonable range, it ensures the degree of freedom of rotation and avoids the swaying of the support due to excessive clearance. This allows the compression spring 71 to undergo elastic deformation more stably along a straight line, better reduce elastic force loss, ensure the supporting effect of the elastic component 70 on the second connecting member 30, and further improve the structural stability and reliability of the rotating mechanism 100.

[0060] See Figure 3 and Figure 4 In one embodiment of the present invention, the second rib 31 includes a main body plate 311 and a mounting sleeve 313. The mounting sleeve 313 is connected to one side of the main body plate 311, and the mounting sleeve 313 has a receiving space. The side of the mounting sleeve 313 facing the first connector 10 has a connecting hole 3131. Alternatively, the second rib 31 includes a first plate and a second plate, which are spaced apart from each other, forming a receiving space between them. The facing surfaces of the first plate and the second plate are respectively provided with connecting holes 3131.

[0061] In some embodiments, the main body plate 311 can refer to a base plate structure used to support the mounting sleeve 313, serving to support and fix the mounting sleeve 313. The mounting sleeve 313 can refer to a sleeve structure connected to the main body plate 311, and can be assembled with the main body plate 311 by welding or bolting. The mounting sleeve 313 can be used to form a receiving space and provide a connection hole 3131. Specifically, the mounting sleeve 313 and the main body plate 311 form an integrated structure, the receiving space is confined inside the mounting sleeve 313, and the connection hole 3131 is opened on the side of the mounting sleeve 313 facing the first connecting member 10, allowing the connecting shaft 753 of the second support member 75 to be directly inserted into the connection hole 3131 to complete the assembly, achieving a stable rotational connection between the second support member 75 and the second rib plate 31, further improving the structural stability and reliability of the rotating mechanism 100.

[0062] In other embodiments, the first plate and the second plate can refer to parallel plate-like structures, with the two plates spaced apart to form a receiving space. This allows the first and second plates to form the inner walls of the receiving space, which constrain the second support member 75. Specifically, the first and second plates are spaced apart to form a receiving space, and connecting holes 3131 are respectively opened on the opposite inner walls of the two plates. The connecting shaft 753 of the second support member 75 is simultaneously inserted into the connecting holes 3131 on both sides, forming a symmetrical support structure. This achieves a stable rotational connection between the second support member 75 and the second rib plate 31, further improving the structural stability and reliability of the rotating mechanism 100.

[0063] See Figure 1 and Figure 2 In one embodiment of the present invention, the first rib 11 is provided with one of a limiting block 113 or a limiting groove 3111, and the second rib 31 is provided with the other of a limiting block 113 or a limiting groove 3111. The limiting groove 3111 extends along the rotation direction of the second connector 30. The limiting block 113 is disposed in the limiting groove 3111 and can abut against the two opposite inner sidewalls of the limiting groove 3111 for limiting.

[0064] In this embodiment, the limiting block 113 refers to a physical structure used to limit the rotation angle, and the limiting groove 3111 refers to a guide structure used to accommodate the limiting block 113. Specifically, it can be implemented using an arc-shaped groove 111 or a straight slide, with its extension direction matching the rotation trajectory. Specifically, when the second connecting member 30 rotates relative to the first connecting member 10, the limiting block 113 can move synchronously within the limiting groove 3111, and the limiting groove 3111 plays a certain guiding and limiting role in the movement of the limiting block 113, preventing the limiting block 113 from disengaging. When the second connecting member 30 rotates relative to the first connecting member 10 to a certain preset angle, the limiting block 113 contacts the groove wall to form a physical block, effectively limiting the rotation angle of the second connecting member 30 relative to the first connecting member 10, further improving the practicality and reliability of the rotating mechanism 100.

[0065] See Figure 1 and Figure 2 In one embodiment of the present invention, the first connector 10 is provided with two first ribs 11, which are arranged opposite each other at a distance. The second connector 30 is provided with two second ribs 31, which are arranged opposite each other at a distance. Each second rib 31 is respectively configured to cooperate with a first rib 11.

[0066] By equipping the first connector 10 with two spaced-apart opposing first ribs 11, the first connector 10 can form a U-shaped structure; similarly, by equipping the second connector 30 with two spaced-apart opposing second ribs 31, the second connector 30 can also form a U-shaped structure. The symmetrical arrangement of the two first ribs 11 and the two second ribs 31 forms four sets of support points. Through the synergistic effect of the paired ribs, the load on the drive device 50 is distributed, reducing stress concentration at individual connection points. This achieves a more stable and reliable connection between the first connector 10 and the second connector 30, preventing the second connector 30 from detaching from the first connector 10 during rotation, and further improving the overall structural stability and reliability of the rotating mechanism 100.

[0067] See Figures 1 to 3 In one embodiment of the present invention, the drive device 50 is installed at a cooperating first rib 11 and a second rib 31, and the elastic component 70 is installed at another cooperating first rib 11 and another second rib 31.

[0068] In this embodiment, the first connector 10 and the second connector 30 are provided with two sets of cooperating first ribs 11 and second ribs 31 to form a more stable rotational support structure. The drive device 50 can be installed at one set of cooperating first ribs 11 and second ribs 31, and the elastic component 70 can be installed at another set of cooperating first ribs 11 and second ribs 31. This allows the drive device 50 and the elastic component 70 to be evenly arranged using the two sets of spaced first ribs 11 and second ribs 31, reducing mutual interference between the drive device 50 and the elastic component 70. This is beneficial to the balanced design of the overall structure of the rotating mechanism 100, so that the center of gravity of the rotating mechanism 100 can be better located between the two first ribs 11 and the two second ribs 31, ensuring the stable rotation of the second connector 30 relative to the first connector 10, and further improving the overall structural stability and reliability of the rotating mechanism 100.

[0069] See Figures 1 to 3 In one embodiment of the present invention, the driving device 50 includes a rotating shaft assembly 51 and a driving motor 53. The rotating shaft assembly 51 passes through and connects the first rib 11 and the second rib 31. The driving motor 53 is connected to the first rib 11 and / or the second rib 31 and drives the second connecting member 30 to rotate relative to the first connecting member 10.

[0070] In this embodiment, the first rib 11 and the second rib 31 are connected by the rotating shaft assembly 51, enabling the second connecting member 30 to rotate stably relative to the first connecting member 10 around the central axis of the rotating shaft assembly 51, thus achieving stable rotation of the rotating mechanism 100. The driving device 50 can be connected and mounted on the first rib 11, allowing it to indirectly drive the second connecting member 30 to rotate via gear transmission, belt transmission, or other means; alternatively, the second rib 31 can be engaged with the rotating shaft assembly 51, allowing the driving device 50 to directly drive the rotating shaft assembly 51 and the second rib 31 to rotate. Furthermore, the driving device 50 can also be connected and mounted on the second rib 31, similarly enabling the second connecting member 30 to rotate synchronously by indirectly driving the rotating shaft assembly 51, or by directly driving the second connecting member 30 to rotate, ensuring stable rotation of the second connecting member 30. In addition, the drive device 50 can also connect the first rib 11 and the second rib 31 at the same time, which facilitates the spatial layout design of the rotating mechanism 100, so that the drive device 50 can more stably drive the second connecting member 30 to rotate relative to the first connecting member 10 by a certain angle, realize the steering function of the rotating mechanism 100, and further improve the practicality and structural reliability of the rotating mechanism 100.

[0071] See Figure 2 and Figure 3In one embodiment of the present invention, a drive motor 53 is mounted on a first rib 11, and a drive wheel 531 is connected to the rotating shaft of the drive motor 53. A transmission rack 3113 is provided on the surface of the second rib 31 facing the first rib 11. The transmission rack 3113 extends along the rotation direction of the second connector 30, and the drive wheel 531 is meshed with the transmission rack 3113.

[0072] In this embodiment, the drive device 50 can mount and fix the drive motor 53 on the first rib plate 11, and can set the drive wheel 531 on the rotating shaft of the drive motor 53. By setting the transmission rack 3113 on the side of the second rib plate 31 facing the first rib plate 11, the transmission rack 3113 can be provided with multiple teeth that cooperate with the drive wheel 531. Furthermore, the rack can be set in an arc structure with an arc equal to the swing path of the second connecting member 30, so that when the drive motor 53 drives the drive wheel 531 to rotate, the drive wheel 531 can mesh with and drive the transmission rack 3113 and the second connecting member 30 to rotate around the rotating shaft assembly 51, thereby realizing the stable swing operation of the rotating mechanism 100. By utilizing the gear meshing action of the drive motor 53 and the transmission rack 3113 to drive the second connecting member 30 to swing in the up and down direction, the structural setting of the drive device 50 on the second connecting member 30 can be better simplified, which is conducive to reducing the overall weight of the second connecting member 30. This allows the drive device 50 to drive the second connecting member 30 to swing relative to the first connecting member 10 at a lower operating power, further improving the practicality and reliability of the rotating mechanism 100.

[0073] See Figure 4 and Figure 5 In one embodiment of the present invention, the rotating shaft assembly 51 includes a bushing 511, a shaft body 513 and a bearing 515. The bushing 511 is disposed between the first rib 11 and the second rib 31 and connects the first rib 11 and / or the second rib 31. The bushing 511 is provided with a fixing groove 5111. The bearing 515 is fixedly disposed in the fixing groove 5111. The shaft body 513 is disposed through the first rib 11, the bushing 511 and the second rib 31. The bearing 515 is sleeved on the outer periphery of the shaft body 513.

[0074] In this embodiment, since the thickness of the first rib 11 and the second rib 31 is mostly small, a bushing 511 is used to install on the first rib 11 or the second rib 31, or a bushing 511 is installed on both the first rib 11 and the second rib 31. The bushing 511 can be a sleeve structure with a thickness greater than that of the first rib 11 and the second rib 31. The bearing 515 can be installed and fixed inside the bushing 511, so that the bearing 515 can be stably set on the first rib 11 or the second rib 31. This makes it easier to pass the shaft 513 through the first rib 11, the bearing 515 and the second rib 31. This helps to better reduce the rotational friction of the shaft assembly 51 under the action of the bearing 515, and achieve a smoother and more stable rotational connection between the shaft assembly 51 and the first rib 11 and the second rib 31. By setting the bushing 511, the possibility of not being able to properly install the bearing 515 due to the thinness of the first rib 11 or the second rib 31 can be effectively avoided. This eliminates the need to adopt a more complex structural design for the first rib 11 or the second rib 31, thereby increasing production costs and further improving the practicality and structural reliability of the rotating mechanism 100.

[0075] The present invention also proposes a fan 1000, which includes a rotating mechanism 100 and a fan assembly. The specific structure of the rotating mechanism 100 is as described in the above embodiments. Since the fan 1000 adopts all the technical solutions of all the above embodiments, it has at least all the beneficial effects brought about by the technical solutions of the above embodiments, which will not be described in detail here.

[0076] Reference Figures 9 to 13 It should be noted that the rotating mechanism 100 can be applied in the field of air-blowing equipment such as fans 1000 and hair dryers, for example... Figure 9 and Figure 10 As shown, the second connecting member 30 of the rotating mechanism 100 can be connected to the fan assembly of the fan 1000. The rotating mechanism 100 can stably realize the function of the second connecting member 30 swinging up and down, so that the fan 1000 can swing up and down, effectively increasing the air blowing range of the fan 1000 and further improving the practicality and reliability of the fan 1000.

[0077] The fan assembly may include a fan body 41 and a fan blade 43. The fan body 41 drives the fan blade 43 to rotate. The fan 1000 also includes a support structure. The rotating mechanism 100 can install and connect the first connecting piece 10 to the end of the support structure such as a column or tripod to achieve a stable connection between the rotating mechanism 100 and the support structure, and fix the fan assembly to the second connecting piece 30 to ensure a stable support for the fan assembly.

[0078] See Figure 9 and Figure 10In one embodiment of the present invention, the second connector 30 includes a seat plate 33, a second rib plate 31 is bent and connected to the side wall of the seat plate 33, and the fan body 41 is connected to the seat plate 33.

[0079] In this embodiment, by bending the second rib 31 and connecting it to the side wall of the base plate 33, the second connector 30 can be formed into a structure similar to an "L" or "U" shape, so that the second connector 30 can be stably rotatably connected to the first connector 10. Under the action of the base plate 33, the second connector 30 can have a larger connection area with the fan assembly, ensuring the stable support of the rotating mechanism 100 for the fan assembly, and further improving the overall structural stability of the fan 1000.

[0080] The fan assembly connects the fan body 41 to the base plate 33, allowing the second connector 30 to better integrate with the fan body 41, enabling the second connector 30 and the fan assembly to more stably and synchronously oscillate, further improving the overall structural stability and reliability of the fan 1000. The base plate 33 can be securely connected to the fan body 41 using bolts, screws, and other fasteners, ensuring the fan body 41 is firmly fixed to the base plate 33, achieving more stable and reliable operation of the fan 1000, and further improving the overall structural stability and reliability of the fan 1000.

[0081] See Figure 12 and Figure 13 In one embodiment of the present invention, the second rib plate 31 is provided with at least two wiring holes 315, and the fan 1000 also includes a transmission cable, which is arranged to pass through at least two wiring holes 315 in sequence; the base plate 33 is provided with a wire hole 331 communicating with the fan assembly, and the transmission cable passes through the wire hole 331 and is electrically connected to the fan body 41.

[0082] In this embodiment, the transmission cable can be a wire that supplies power or controls the fan body 41. The fan 1000 can utilize the first connector 10 and the second connector 30 to provide support and fixation for the transmission cable, allowing it to pass through the rotating mechanism 100 and achieving a compact design for the entire fan 1000. The second connector 30 can have a cable passage hole 331 on the base plate 33, allowing the transmission cable to pass through the hole 331 and connect to the fan body 41 on one side of the base plate 33. This further reduces the cable routing path, minimizes the space occupied by the cable, and improves the practicality and structural reliability of the fan 1000.

[0083] By opening at least two wiring holes 315 on the second rib 31 for the transmission cable to pass through sequentially, the transmission cable can be wound more neatly on the second rib 31 for routing. At the same time, compared with the method of routing the cable through the upper and lower sides of the second rib 31, having the transmission cable pass through at least two wiring holes 315 also helps to reduce the length of the transmission cable in the rotating mechanism 100, which is conducive to reducing the space occupied by the transmission cable in the fan 1000, and helps to better realize the overall miniaturization design of the fan 1000, further improving the practicality and reliability of the fan 1000.

[0084] See Figure 12 and Figure 13 In one embodiment of the present invention, the second rib plate 31 is provided with a wire passage groove 317 on the plate surface opposite to the base plate 33. The wire passage groove 317 is located between two adjacent wire passage holes 315 and communicates with the two wire passage holes 315. The transmission cable passes through the wire passage groove 317. The second rib plate 31 is also provided with a wire stop plate 319 on the plate surface opposite to the base plate 33. The wire stop plate 319 is exposed in the slot of the wire passage groove 317 and is used to limit the transmission cable.

[0085] In this embodiment, by providing a cable tray 317 on the surface of the second rib 31 facing away from the base plate 33, and by positioning the cable tray 317 between and communicating with two adjacent cable holes 315, the transmission cable can pass through the cable tray 317 from one cable hole 315 to another adjacent cable hole 315. This allows the transmission cable to be contained and confined within the cable tray 317, preventing the transmission cable from protruding from the surface of the second rib 31. This further reduces the space occupied by the transmission cable within the fan 1000, facilitates the miniaturization design of the fan 1000, and further improves the stability and reliability of the wiring within the fan 1000.

[0086] By setting a wire baffle 319 on the surface of the second rib 31 and exposing the wire baffle 319 at the opening of the wire groove 317, the wire baffle 319 can prevent the transmission cable from coming out of the wire groove 317, thereby achieving a better limiting installation effect of the transmission cable in the wire groove 317, ensuring the stable and reliable routing of the transmission cable on the second connector 30, so that the transmission cable can be more stably electrically connected to the fan body 41, and further improving the structural stability and reliability of the fan 1000.

[0087] See Figures 9 to 11 In one embodiment of the present invention, the support structure includes a support frame and a rotating mechanism 23. The rotating mechanism 23 connects the first connecting member 10 and the support frame, and is used to drive the rotating mechanism 100 to rotate horizontally relative to the support frame.

[0088] In this embodiment, the support frame may include, but is not limited to, a column, tripod, or other frame structure. By setting a horizontal rotation mechanism 23 on the support frame and connecting the first connecting member 10 of the rotation mechanism 100 to the horizontal rotation mechanism 23, the horizontal rotation mechanism 23 may be a motor assembly, which can drive the rotation mechanism 100 to rotate horizontally as a whole; or the horizontal rotation mechanism 23 may be a push rod gear mechanism, by setting a locking tooth on the side of the push rod and engaging the locking tooth with a horizontally rotatable gear, the push rod can drive the gear to rotate during its reciprocating movement, thereby driving the rotation mechanism 100 to rotate horizontally as a whole through the gear; of course, the specific structure of the horizontal rotation mechanism 23 is not limited to this, and this application does not limit the specific structure of the horizontal rotation mechanism 23, as long as it can stably drive the rotation mechanism 100 to rotate horizontally relative to the support frame.

[0089] Furthermore, under the action of the horizontal rotation mechanism 23, the rotation mechanism 100 and the fan assembly can be stably driven to rotate in the horizontal direction, which can better realize the left and right swing function of the fan 1000. Combined with the rotation mechanism 100 driving the fan assembly to swing up and down, the fan 1000 can achieve a wider range of air blowing effect, further improving the practicality and structural reliability of the fan 1000.

[0090] See Figure 10 and Figure 11 In one embodiment of the present invention, the lateral rotation mechanism 23 includes a first column 231, a second column 233, and a steering motor 235. The first column 231 is connected to the support frame; the second column 233 is stacked on top of the first column 231, and one end of the second column 233 facing away from the first column 231 is connected to the first connector 10; the steering motor 235 connects the first column 231 and the second column 233 and drives the second column 233 to rotate relative to the first column 231. And / or, the lateral rotation mechanism 23 is provided with a power connector 237 on its periphery, and the fan 1000 also includes a transmission cable electrically connected to the power connector 237 and passing through the lateral rotation mechanism 23 and the rotation mechanism 100.

[0091] In some embodiments, the lateral rotation mechanism 23 can be formed by stacking a first column 231 and a second column 233. The first column 231 and the second column 233 can be sleeve structures with a certain cavity, so that the steering motor 235 can be installed in the inner cavity of the first column 231 and the second column 233 and connected to the first column 231 and the second column 233. By connecting and fixing the first column 231 to the support frame, the steering motor 235 can be electrically driven to operate, so that the steering motor 235 can drive the second column 233 to rotate horizontally relative to the first column 231, that is, the second column 233 can rotate left and right in the horizontal direction. Furthermore, by connecting the end of the second column 233 facing away from the first column 231 to the second connecting member 30 of the rotating mechanism 100, the rotating mechanism 100 and the fan assembly can be driven to rotate together when the second column 233 rotates, realizing the horizontal swing function of the fan 1000, enabling the fan 1000 to achieve a wider range of air blowing effect, and further improving the practicality and reliability of the fan 1000.

[0092] By incorporating a steering motor 235 within the horizontal rotation mechanism 23 to drive the second column 233 to rotate, and causing the second column 233 to drive the rotation mechanism 100 to rotate horizontally, the fan 1000 can integrate both vertical and horizontal oscillation functions. This allows the fan assembly to achieve multiple degrees of freedom of oscillation, effectively increasing the airflow range of the fan 1000 and enabling it to better meet user needs, further enhancing its practicality and reliability. Furthermore, by connecting and integrating the horizontal rotation mechanism 23 with the rotation mechanism 100, the fan 1000 can accommodate multiple drive components more compactly within a smaller size, facilitating miniaturization and further improving its usability.

[0093] Secondly, in some embodiments, the fan 1000 can have a power connector 237 provided around the circumference of the horizontal rotation mechanism 23. The power connector 237 is electrically connected to the transmission cable inside the fan 1000, allowing power to be supplied to the internal electrical equipment via an external power source. The transmission cable can be electrically connected inside the fan 1000 to the drive unit 50 and the fan body 41, ensuring stable power delivery to these devices and guaranteeing stable operation of the fan 1000. The transmission cable can be routed within the fan 1000 near the horizontal rotation mechanism 23 and the rotating mechanism 100; alternatively, corresponding holes or cable fixing structures can be provided on the first connecting member 10 and the second connecting member 30 of the rotating mechanism 100, allowing the transmission cable to be wound around the rotating mechanism 100 for routing, thus reducing the space occupied by the transmission cable and achieving a miniaturized design of the fan 1000.

[0094] The power connector 237 can be plugged into a wire with a power terminal at the end, allowing the fan 1000 to be powered by an external power source. By providing the power connector 237 on the rotating mechanism 23, the fan 1000 can be easily disassembled and used, reducing the dragging of the power cable when the fan 1000 is stored, and further improving the practicality of the fan 1000.

[0095] The above description is merely an exemplary embodiment of the present invention and does not limit the patent scope of the present invention. Any equivalent structural transformations made using the contents of the present invention specification and drawings under the technical concept of the present invention, or direct / indirect applications in other related technical fields, are included within the patent protection scope of the present invention.

Claims

1. A rotating mechanism, characterized by comprising: The utility model relates to a first connecting piece, second connecting piece, drive device and elastic component, and the first connecting piece is provided with the first rib plate, and the second connecting piece is provided with the second rib plate, and the plane of the second rib plate is parallel with or coincides with the plane of the first rib plate, and the drive device is connected the first rib plate and the second rib plate, and drives the second connecting piece relative to the first connecting piece rotates along the up and down direction to make the included angle between the first connecting piece and the second connecting piece change. The elastic component is arranged between the first rib plate and the second rib plate, and the elastic component includes compression spring, first support and second support, the two ends of the compression spring are connected or abutted with the first support and the second support respectively, the first support is rotatably connected to the first connecting piece, and the second support is rotatably connected to the second connecting piece, the first support includes bottom plate and support rod, the support rod is connected to the bottom plate, the second support is provided with avoiding hole, the support rod is movably arranged through the avoiding hole, the compression spring is sleeved on the outer wall of the support rod and is arranged in the interval with the outer wall of the support rod, one end of the compression spring is connected or abutted with the bottom plate, and the compression spring is elastically stretched and contracted along a straight line, the opposite sides of the second support are respectively provided with connecting shaft, and the connecting shaft is used for forming a rotating pair with the connecting hole of the second rib plate. When the second connecting piece rotates in the direction close to the first connecting piece, the included angle between the first connecting piece and the second connecting piece decreases, the gravity of the second connecting piece makes the compression spring compressively deform to make the compression spring store elastic potential energy by deformation; When the drive device drives the second connecting piece to rotate in the direction away from the first connecting piece, the included angle between the first connecting piece and the second connecting piece increases, the compression spring releases elastic potential energy by restoring deformation, the elastic force direction of the compression spring applied on the second connecting piece is opposite to the gravity direction of the second connecting piece to offset part of the gravity of the second connecting piece by using elastic force. The side of the first rib plate facing the second connecting piece is provided with a groove, the groove is arranged in an arc shape, the side of the first support away from the compression spring is provided with an arc-shaped protrusion, the arc-shaped protrusion is rotatably arranged in the groove and abuts against the inner wall of the groove. The arc-shaped protrusion and the support rod are respectively connected to the two opposite plate surfaces of the bottom plate. The elastic stretching and contraction amount of the compression spring is defined as W, and the gap between the inner wall of the compression spring and the outer wall of the support rod is defined as L, and 0.001≤L / W≤0.1; And / or, the plate surface of the bottom plate away from the support rod is provided with two spaced apart limiting baffle plates, the arc-shaped protrusion is arranged between the two limiting baffle plates, and the two limiting baffle plates are respectively arranged in opposite abutment with the opposite sides of the first rib plate.

2. The swivel mechanism of claim 1, wherein ​ 3. The swivel mechanism of claim 2, wherein, ​ 4. The swivel mechanism of claim 3, wherein ​ ​ 5. The swivel mechanism of claim 1, wherein The second rib plate is provided with a receiving space, two opposite inner walls of the receiving space are respectively provided with a connecting hole, and at least part of the structure of the second support is rotatably arranged in the receiving space, and two connecting shafts are rotatably inserted into the two connecting holes respectively.

6. The swivel mechanism of claim 5, wherein, The second rib plate comprises a main plate and a mounting sleeve, the mounting sleeve is connected to one side of the main plate, the mounting sleeve is provided with the receiving space, and the mounting sleeve is provided with the connecting hole on the side facing the first connecting piece. Alternatively, the second rib plate comprises a first plate body and a second plate body, the first plate body and the second plate body are arranged in opposite spaced relation, the receiving space is formed between the first plate body and the second plate body, and the plate surfaces of the first plate body and the second plate body facing each other are respectively provided with the connecting hole.

7. The swivel mechanism of any one of claims 1 to 6, wherein, The first rib plate is provided with one of a limiting block or a limiting clamping groove, the second rib plate is provided with the other one of the limiting block or the limiting clamping groove, the limiting clamping groove extends along the rotation direction of the second connecting piece, and the limiting block is arranged in the limiting clamping groove and is abuttingly arranged with two opposite inner walls of the limiting clamping groove.

8. The swivel mechanism of any one of claims 1 to 6, wherein, The first connecting piece is provided with two first rib plates arranged in opposite spaced relation, the second connecting piece is provided with two second rib plates arranged in opposite spaced relation, and one second rib plate is arranged in cooperation with one first rib plate.

9. The swivel mechanism of claim 8, wherein, The driving device is arranged at one first rib plate and one second rib plate arranged in cooperation, and the elastic component is arranged at the other first rib plate and the other second rib plate arranged in cooperation.

10. The swivel mechanism of any one of claims 1 to 6, wherein, The driving device comprises a rotating shaft assembly and a driving motor, the rotating shaft assembly penetrates and connects the first rib plate and the second rib plate, and the driving motor is connected to the first rib plate and / or the second rib plate and drives the second connecting piece to rotate relative to the first connecting piece.

11. The swivel mechanism of claim 10, wherein, The driving motor is arranged on the first rib plate, a driving wheel is connected to the rotating shaft of the driving motor, a transmission rack is arranged on the plate surface of the second rib plate facing the first rib plate, the transmission rack extends along the rotation direction of the second connecting piece, and the driving wheel is meshingly connected to the transmission rack.

12. The swivel mechanism of claim 10, wherein, The rotating shaft assembly comprises a shaft sleeve, a shaft body and a bearing, the shaft sleeve is arranged between the first rib plate and the second rib plate and connected to the first rib plate and / or the second rib plate, the shaft sleeve is provided with a fixing groove, the bearing is fixedly arranged in the fixing groove, the shaft body penetrates the first rib plate, the shaft sleeve and the second rib plate, and the bearing is sleeved on the outer periphery of the shaft body.

13. A fan, comprising: The fan comprises a rotating mechanism and a fan assembly, the rotating mechanism is the rotating mechanism according to any one of claims 1 to 12, and the rotating mechanism drives the fan assembly to swing in the up-down direction.

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