Drive mechanism

Abstract

An embodiment of the present invention discloses a driving mechanism applied to a circulation fan. The circulation fan includes a body. The driving mechanism includes a first rotating assembly, and the first rotating assembly includes a first fixed frame and a first movable frame. The first fixed frame is fixed in the circulation fan. The first movable frame is rotatably connected to the first fixed frame and forms a U shape, so that the first movable frame can have a first steering direction relative to the first fixed frame. The body is rotatably installed at one end of the first movable frame far from the connection with the first fixed frame, so that the body and the first movable frame have a second steering direction, and the second steering direction is different from the direction of the first steering direction.

Description

Technical Field

[0001] The present invention relates to the field of household appliances, and particularly to a driving mechanism. Background Art

[0002] Compared with traditional electric fans, a circulation fan can blow air in a spiral shape along a certain direction. As the fan blades stir, a spiral columnar air flow can be formed.

[0003] Generally, the air blown by a circulation fan is at a relatively long distance and has good directivity. Such air has a larger contact area with the surrounding air, disperses the surrounding air, drives more air to participate in the indoor air circulation, and accelerates the indoor air flow, thereby balancing the indoor temperature.

[0004] Currently, existing circulation fans only have a left - right swing function and cannot swing up and down. This makes it impossible to adjust the up - and - down air supply angle according to the needs of life, and cannot meet the user's demand for an adjustable up - and - down air supply angle of the circulation fan, leaving room for improvement. Summary of the Invention

[0005] The present invention provides a driving mechanism that can adjust the air supply angle of a circulation fan according to the rotation angle between a first fixed frame and a first movable frame, thereby meeting the user's demand for the air supply angle of the circulation fan.

[0006] The present invention provides a driving mechanism applied to a circulation fan. The circulation fan includes a body, and comprises:

[0007] A first rotating assembly, the first rotating assembly including a first fixed frame and a first movable frame;

[0008] The first fixed frame is fixed in the circulation fan, and the first movable frame is rotatably connected to the first fixed frame to form a U - shaped structure, so that the first movable frame can have a first steering direction relative to the first fixed frame;

[0009] The body is rotatably installed at one end of the first movable frame away from the connection with the first fixed frame, so that the body and the first movable frame have a second steering direction, and the second steering direction is different from the first steering direction.

[0010] In the driving mechanism of the present application, both the first movable frame and the first fixed frame are in an L - shaped structure or an arc - shaped structure. One end of the first movable frame is rotatably connected to one end of the first fixed frame, and both ends of the body are respectively connected to the other ends of the first movable frame and the first fixed frame.

[0011] In the driving mechanism of the present application, the first rotating assembly further includes a first bearing member, and the first bearing member is disposed between the first movable frame and the first fixed frame.

[0012] In the driving mechanism of the present application, the driving mechanism further includes a second rotating assembly. The second rotating assembly is installed between the first fixed frame and the first movable frame, and the body is installed on the second rotating assembly.

[0013] In the driving mechanism of the present application, the first rotating assembly further includes a first driving member. The first driving member is installed on the first movable frame and is used to drive the second rotating assembly to rotate relative to the first movable frame.

[0014] In the driving mechanism of the present application, the first rotating assembly further includes a first transmission member. The first driving member is in transmission connection with the second rotating assembly through the first transmission member.

[0015] In the driving mechanism of the present application, the first transmission member includes a first rack, a first driving gear installed on the first driving member, and a first driven gear installed on the second rotating assembly. The first driving gear is in transmission connection with the first driven gear through the first rack.

[0016] In the driving mechanism of the present application, tooth portions are provided at both ends of the first rack, and the first driving gear and the first driven gear are respectively disposed at both ends of the first rack.

[0017] In the driving mechanism of the present application, a guide seat is provided on the first movable frame, a guide slide rail is provided on the first rack, and the first rack is slidably installed on the guide seat through the guide slide rail.

[0018] In the driving mechanism of the present application, the first transmission member further includes a first belt. The first driving member is in transmission connection with the second rotating assembly through the first belt.

[0019] The technical solution provided by the embodiment of the present application may include the following beneficial effects: The present application designs a driving mechanism. Since the first movable frame can have a first steering direction relative to the first fixed frame, the body and the first movable frame have a second steering direction, and the direction of the second steering direction is different from that of the first steering direction. Therefore, the user can adjust the air supply angle of the circulation fan according to the rotation angle between the first fixed frame and the first movable frame, so as to meet the user's demand for the air supply angle of the circulation fan.

[0020] It should be understood that the above general description and the following detailed description are only exemplary and explanatory, and cannot limit the present application. Description of the Drawings

[0021] To more clearly illustrate the technical solutions of the embodiments of the present invention, the following will briefly introduce the drawings required for the description of the embodiments. Obviously, the drawings in the following description are some embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.

[0022] Figure 1 It is a schematic structural diagram of a circulation fan in the present invention;

[0023] Figure 2 is Figure 1 a schematic cross-sectional view of the circulation fan in

[0024] Figure 3 is Figure 1 a schematic exploded view of the circulation fan in

[0025] Figure 4 is Figure 1 a schematic cross-sectional view of the suction cup assembly in

[0026] Figure 5 is Figure 1 a schematic structural diagram of the suction cup assembly in

[0027] Figure 6 is Figure 1 a schematic partial structural diagram of the circulation fan in

[0028] Figure 7 is Figure 1 a schematic partial exploded view of the circulation fan in

[0029] Figure 8 is Figure 1 a schematic partial exploded view of the circulation fan in

[0030] Figure 9 is Figure 1 a schematic partial exploded view of the circulation fan in

[0031] Figure 10 is Figure 1 a schematic exploded view of the drive mechanism in

[0032] Figure 11 is Figure 1 a schematic exploded view of the first rotating assembly in

[0033] Figure 12 is Figure 1 a schematic exploded view of the first transmission member in

[0034] Figure 13 is Figure 1 a schematic exploded view of the second rotating assembly in

[0035] Figure 14 is Figure 1 a partial exploded view of the second rotating assembly in

[0036] Figure 15 is Figure 1 an exploded schematic view of the second transmission member in

[0037] Figure 16 is Figure 1 a schematic structural view of the second fixing bracket in

[0038] Figure 17 is Figure 1 an exploded schematic view of the body in

[0039] Figure 18 is Figure 1 an exploded schematic view of the rear shell in

[0040] Figure 19 is Figure 1 a schematic structural view of the rear shell in

[0041] Figure 20 is Figure 1 a schematic structural view of the fan blade in

[0042] Figure 21 is Figure 1 a schematic structural view of the fan blade in

[0043] Figure 22 is Figure 1 an exploded schematic view of the front shell in

[0044] Figure 23 is Figure 1 a schematic structural view of the front grille in

[0045] Figure 24 is Figure 1 an exploded schematic view of the base in

[0046] Figure 25 is Figure 1 a schematic structural view of the storage case in Detailed implementation manners

[0047] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are some, but not all, of the embodiments of the present invention. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the protection scope of the present invention.

[0048] In the description of the present invention, it should be understood that the orientation or positional relationship indicated by the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc. is the orientation or positional relationship based on the drawings. It is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, it should not be construed as a limitation to the present invention. In addition, the terms "first" and "second" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include one or more of the said features. In the description of the present invention, "a plurality" means two or more, unless otherwise specifically defined.

[0049] The following will describe in detail some embodiments of the present invention with reference to the drawings. Without conflict, the embodiments and features in the following embodiments may be combined with each other.

[0050] As Figures 1 to 25 shown, a circulation fan provided by the present application includes a body 10 and a base 20. Among them, a support assembly 30 is provided on the base 20, and the body 10 is installed at one end of the support assembly 30 away from the base 20. In this embodiment, the body 10 includes a fan blade 11, a front shell 12, a rear shell 13, and a fan motor 14 for driving the fan blade 11 to rotate. The front shell 12 is joined to the rear shell 12 to form an accommodation space, and the fan blade 11 is disposed in the accommodation space, which can not only protect the fan blade 11 to avoid injury to the user when the fan blade 11 rotates, but also ensure that the fan motor 14 can drive the fan blade 11 to rotate and blow air towards the room or people, achieving the effect of dissipating heat or reducing the room temperature.

[0051] In an alternative embodiment, a fixing structure is provided at one end of the base 20 facing away from the support assembly 30. The fixing structure includes a suction cup assembly for fixing the circulation fan on the placement surface. Among them, the placement surface can be a smooth and clean object surface such as a tile on the ground, and the suction cup assembly can be made of a plastic material with certain rigidity and certain flexibility, such as silicone rubber, PVC material, nitrile rubber, polyurethane, or a polymer containing vinyl. After adopting the above technical solution, the base 20 of the circulation fan can be fixed on the placement surface through the suction cup assembly.

[0052] Specifically, the suction cup assembly includes a suction cup 21 provided with a hollow conical cavity and an exhaust valve 22 provided on the suction cup. After the suction cup 21 abuts against the placement surface, the support assembly 30 presses the suction cup 21 against the base 20, so that the air in the hollow conical cavity of the suction cup 21 is discharged through the exhaust valve 22; releasing the support assembly 30 allows the suction cup 21 to automatically reset. During the self-resetting process of the suction cup 21, negative pressure is generated in the hollow conical cavity of the suction cup 21, so that the suction cup 21 can adsorb on the placement surface, ensuring that the circulation fan can be stably placed on the placement surface.

[0053] It should be noted that the suction cup 21 can also be pressed against the placement surface by the gravity of the circulation fan itself. At the same time, other methods can also be used to extract the gas in the hollow conical cavity through the exhaust valve 22, so that negative pressure is generated in the hollow conical cavity of the suction cup 21 during the self-resetting process of the suction cup 21, thus ensuring that the circulation fan can be stably placed on the placement surface; at the same time, the placement surface can also include a rough object surface, which is not limited in this application.

[0054] In an optional embodiment, a suction cup air cavity 211 and a suction cup flow channel 212 communicating with the suction cup air cavity are provided on the suction cup 21. Among them, the exhaust valve 22 is provided on the suction cup flow channel 212, so that the gas in the hollow conical cavity of the suction cup 21 can pass through the suction cup air cavity 211 and then be discharged to the outside of the suction cup 21 through the suction cup flow channel 212. The exhaust valve 22 is used to discharge the gas in the suction cup flow channel 212 and at the same time prevent external gas from entering the suction cup flow channel 212.

[0055] Specifically, a base cavity 23 and an exhaust hole 231 are provided on the base 20. The suction cup 21 is installed on the base cavity 23, and the suction cup flow channel 212 is connected to the exhaust hole 231. In this embodiment, the shapes of the suction cup 21 and the base cavity 23 are both rectangular structures. The exhaust hole 231 is provided on the side wall of the base cavity 23. After the suction cup 21 is installed in the base cavity 23, the suction cup flow channel 212 can be fixed on the exhaust hole 231, or the suction cup flow channel 212 can pass through the exhaust hole 231 and be flush with the outer side surface of the exhaust hole 231, etc.

[0056] In an optional embodiment, the exhaust valve 22 may include an elastic member (not shown in the figure) and a flow blocking member (not shown in the figure). The elastic member is used to abut the flow blocking member against the side of the suction cup flow channel 212 facing the suction cup air cavity 211.

[0057] Specifically, an exhaust valve mounting portion (not shown in the figure) is provided on the suction cup flow channel 212. The diameter of the exhaust valve mounting portion is larger than that of the suction cup flow channel 212. Among them, the side of the exhaust valve mounting portion facing the suction cup air cavity 211 is conical. The flow blocking member can be a steel ball or the like, and the elastic member can be a spring or the like. The spring is used to abut the flow blocking member against the conical portion of the exhaust valve mounting portion, so that when the suction cup air cavity 211 exhausts air, the flow blocking member on the exhaust valve mounting portion can be pushed open, so that the gas can be discharged through the suction cup flow channel 212. After the gas in the suction cup air cavity 211 is exhausted, the flow blocking member is reset under the elastic force of the elastic member to isolate the connection between the suction cup flow channel 212 and the outside.

[0058] In an alternative embodiment, the exhaust valve 22 may include a valve body (not shown in the figure) and a valve (not shown in the figure) mounted on the valve body. Among them, a fan-shaped member (not shown in the figure) that can be opened unidirectionally is provided on the valve, so that the gas in the suction cup air cavity 211 can be discharged through the valve.

[0059] Specifically, the number of fan-shaped members can be one, or the number of fan-shaped members can be two. When the gas in the suction cup air cavity 211 is discharged through the suction cup flow channel 212, the fan-shaped member opens by itself. After the gas in the suction cup flow channel 212 is exhausted, the fan-shaped member closes by itself. Among them, the closing of the fan-shaped member borrows the elastic force of the elastic member, and the opening of the fan-shaped member can be realized by the pressure of the gas, and other driving mechanisms can also be used, which are not limited in this application.

[0060] In an alternative embodiment, the exhaust valve 22 may include a rubber plug provided on the suction cup flow channel 212. The rubber plug is used to isolate the air circulation between the suction cup air cavity 211 and the outside. When the gas in the suction cup air cavity 211 is discharged through the suction cup flow channel 212, the rubber plug is opened to connect the suction cup flow channel 212 with the outside. After the gas in the suction cup flow channel 212 is exhausted, the rubber plug is installed on the suction cup flow channel 212 to prevent the outside air from entering the suction cup air cavity 211.

[0061] In an alternative embodiment, the suction cup 21 includes a suction cup body and a soft rubber ring (not shown in the figure) provided on the suction cup body. Among them, a connecting column (not shown in the figure) protruding outward is provided at the center of the side of the suction cup body facing away from the soft rubber ring, and the connecting column is connected to the base 20.

[0062] Specifically, a soft rubber groove (not shown in the figure) is provided around the suction cup body. The soft rubber ring is bonded in the soft rubber groove by glue or other means, so that the soft rubber ring can fill the soft rubber groove and partially extend out of the soft rubber groove. When the suction cup body is pressed onto the object surface, especially the rough object surface, the soft rubber ring can be deformed so that the suction cup is closely attached to the object surface, avoiding the residual air between the suction cup and the object surface from affecting the vacuum degree of the suction cup.

[0063] In an alternative embodiment, an inner deformation groove that is recessed into the suction cup body is provided along the inner edge of the soft rubber ring, so that a boss is formed on the suction cup body in the direction towards the connecting column, ensuring that the suction cup body has stronger deformation ability.

[0064] In an alternative embodiment, a driving mechanism 40 is installed on the support assembly 30, and the body 10 is installed on the support assembly 30 through the driving mechanism 40. Among them, the driving mechanism 40 includes a first rotating assembly 41 and a second rotating assembly 42 rotatably installed on the first rotating assembly 41. In this embodiment, the first rotating assembly 41 has a first steering direction, and the second rotating assembly 42 has a second steering direction. The first steering direction and the second steering direction are perpendicular to each other, so as to meet the air supply angle requirements of the circulation fan for users.

[0065] Among them, if the first steering direction is the lateral rotation direction of the circulation fan, then the second steering direction is the longitudinal rotation direction of the circulation fan; if the first steering direction is the longitudinal rotation direction of the circulation fan, then the second steering direction is the lateral rotation direction of the circulation fan, and the present application does not make any restrictions.

[0066] Specifically, the first rotating assembly 41 includes a first movable frame 411 and a first fixed frame 412, and the first fixed frame 412 is rotatably connected to the first movable frame 411; the second rotating assembly 42 includes a second fixed frame 421 and a second movable frame 422, and the second fixed frame 421 is rotatably connected to the second movable frame 422. In this embodiment, the fan motor 14 is installed on the second fixed frame 421, the second fixed frame 421 is rotatably installed on the first movable frame 411, the second movable frame 422 is rotatably installed on the first fixed frame 412, and the first fixed frame 412 is fixed on the support assembly 30. After adopting the above technical solution, when the circulation fan is working, the up-and-down angle of the body 10 can be adjusted through the relative relationship between the second fixed frame 421 and the second movable frame 422 and the first movable frame 411 and the first fixed frame 412; the left-and-right angle of the body 10 can be adjusted through the relative relationship between the second fixed frame 421 and the first movable frame 411 and the second movable frame 422 and the first fixed frame 412, so that the air supply angle of the circulation fan can be adjusted from multiple angles, with reasonable structure and strong function.

[0067] In an alternative embodiment, both the first movable frame 411 and the first fixed frame 412 are in an L-shaped structure. Among them, the horizontal end of the first movable frame 411 is rotatably connected to the horizontal end of the first fixed frame 412 to form a U-shape. The second fixed frame 421 is rotatably installed at the vertical end of the first movable frame 411, and the second movable frame 422 is respectively rotatably installed at the vertical end of the first fixed frame 412. Not only is the structural design reasonable, but also the overall circulation fan is made more compact. By the different rotation directions of the first rotation assembly 41 and the second rotation assembly 42, the air supply angle of the circulation fan can be adjusted according to the needs of the user, meeting the user's requirements for the air supply angle of the circulation fan.

[0068] It should be noted that the opening direction of the U-shape can face upward of the circulation fan, or the opening direction of the U-shape can also face the side of the circulation fan, and no limitation is imposed in this application.

[0069] Specifically, the first movable frame 411 and the first fixed frame 412 can be formed by a bending process, which can not only effectively control the manufacturing cost of the first movable frame 411 and the first fixed frame 412, but also ensure the strength and hardness of the first movable frame 411 and the first fixed frame 412, and improve the service life of the first rotation assembly 41.

[0070] It should be noted that the first movable frame 411 and the first fixed frame 412 can also be other curved structures, such as an arc structure. Among them, one end of the first movable frame 411 is rotatably connected to one end of the first fixed frame 412, and both ends of the body 10 are respectively connected to the other ends of the first movable frame 411 and the first fixed frame 412. It should be noted that the first movable frame 411 and the first fixed frame 412 can also be other curved structures, such as an arc structure. Among them, one end of the first movable frame 411 is rotatably connected to one end of the first fixed frame 412, and both ends of the body 10 are respectively connected to the other ends of the first movable frame 411 and the first fixed frame 412. In an alternative embodiment, the second fixed frame 421 includes a first mounting surface 4212, a second mounting surface 4213, and a third mounting surface 4211. Among them, the first mounting surface 4212 is rotatably connected to the first movable frame 411, the second mounting surface 4213 is rotatably connected to the second movable frame 422, and the third mounting surface 4211 is used for mounting the body 10, with a simple structure and reasonable design.

[0071] Specifically, the first mounting surface 4212 and the second mounting surface 4213 are respectively disposed on two adjacent sides of the third mounting surface 4211. The second movable frame 422 is in an L-shaped structure. The horizontal end of the second movable frame 422 is rotatably connected to the second mounting surface 4213, and the vertical end of the second movable frame 422 is rotatably connected to the first fixed frame 412, so that the body 10 on the third mounting surface 4211 can realize left-right rotation through the relationship between the second mounting surface 4213 and the second movable frame 422 and the relationship between the first movable frame 411 and the first fixed frame 412. The body 10 can realize up-down rotation through the relationship between the first mounting surface 4212 and the first movable frame 411 and the relationship between the second movable frame 422 and the first fixed frame 412, thereby ensuring that the user can adjust the air supply angle of the circulation fan according to needs, and thus meeting the user's requirements for the air supply angle of the circulation fan.

[0072] It should be noted that the second movable frame 422 can also be other curved structures, such as an arc structure, which is not limited in this application.

[0073] After adopting the above technical solution, since the two adjacent sides of the third mounting surface 4211 are bent to form the first mounting surface 4212 and the second mounting surface 4213, it can be ensured that the second fixing frame 421 has sufficient strength and hardness to support the weight of the body 10; at the same time, the second movable frame 422 can also be formed by a bending process, which can not only reduce the manufacturing cost of the second rotating assembly 42, but also has a relatively reasonable structural design and strong practicability.

[0074] In an alternative embodiment, the first rotating assembly 41 further includes a first bearing member 416. The first bearing member 416 is disposed between the first movable frame 411 and the first fixed frame 412, so that the first movable frame 411 can be rotatably mounted on the first fixed frame 412.

[0075] Specifically, the first bearing member 416 is a bearing seat. The first fixed frame 412 is provided with a bearing seat fixing portion (not shown in the figure) and a first fixed frame fixing portion (not shown in the figure). The first fixed frame fixing portion is disposed outside the bearing seat fixing portion. In this embodiment, the first bearing member 416 is installed on the bearing seat fixing portion by screws, and the first fixed frame 412 is fixed to the support assembly 30 through the first fixed frame fixing portion, with a simple structure and reasonable design.

[0076] In an alternative embodiment, a fixed frame bearing 417 is provided on the vertical end of the first movable frame 411, and a movable frame bearing 426 is provided on the vertical end of the second movable frame 421. The second fixed frame 421 is connected to the first movable frame 411 through the fixed frame bearing 417, and the second movable frame 422 is connected to the first fixed frame 412 through the movable frame bearing 426. This not only has a simple structure but also ensures the smooth rotation between the second fixed frame 421 and the first movable frame 411 and between the second movable frame 422 and the first fixed frame 412.

[0077] In an alternative embodiment, the first rotating assembly 41 further includes a first driving member 413. The first driving member 413 is installed on the first movable frame 411 and is used to drive the second rotating assembly 42 to rotate relative to the first movable frame 411.

[0078] It should be noted that the first driving member 413 can be installed on the vertical end of the first movable frame 411, or it can also be installed on the horizontal end of the first movable frame 411. The first driving member 413 can be directly connected to the second rotating assembly 42, or it can also be connected to the second rotating assembly 42 through other transmission components. This application does not impose any restrictions. Its main purpose is to drive the second rotating assembly 42 to rotate relative to the first movable frame 411, so as to realize the up and down rotation of the body 10 and ensure that the user can adjust the air supply angle of the circulation fan according to needs.

[0079] In an alternative embodiment, the first rotating assembly 41 further includes a first transmission member 414. The first transmission member 414 includes a first driving wheel 4142 and a first driven wheel 4143. The first driven wheel 4143 is in transmission connection with the first driving wheel 4142. In this embodiment, the first driving member 413 includes a first motor. The first driving wheel 4142 is installed on the output shaft of the first motor, and the first driven wheel 4143 is installed on the second rotating assembly 42. In this way, not only can the up and down rotation of the body 10 be controlled by the first driving member 413, but also long-distance transmission can be carried out, so that the first driving member 413 can be installed at any position on the first movable frame 411, that is, reasonably designed according to the structure of the circulation fan to ensure the compactness of the circulation fan.

[0080] In an alternative embodiment, the first transmission member 414 includes a first rack 4141, and the first driving wheel 4142 is in transmission connection with the first driven wheel 4143 through the first rack 4141.

[0081] Specifically, tooth portions are provided at both ends of the first rack 4141, namely a first tooth portion 4141a and a second tooth portion 4141b respectively. A driving wheel tooth portion 4142a is provided on the first driving wheel 4142. Among them, the driving wheel tooth portion 4142a is meshed and connected with the first tooth portion 4141a, and the second tooth portion 4141b is meshed and connected with the first driven wheel 4143. When the first driving member 413 works, the first driving member 413 can drive the first driving wheel 4142 to rotate and drive the first rack to move through the meshing connection between the driving wheel tooth portion 4142a and the first tooth portion 4141a. The first rack drives the first driven wheel 4143 to rotate through the meshing connection between the second tooth portion 4141b and the first driven wheel 4143, so that the second rotating assembly 42 can rotate relative to the first rotating assembly 41.

[0082] In an alternative embodiment, the orientation of the first tooth portion 4141a is perpendicular to the orientation of the second tooth portion 4141b. For example, the first tooth portion 4141a faces the right side of the circulation fan, and the second tooth portion 4141b faces the upper end of the circulation fan. In this embodiment, the first rack has a two-degree bending structure, and the first tooth portion 4141a and the second tooth portion 4141b are respectively arranged at both ends of the first rack, so that the first driving member 413 can drive the second rotating assembly 42 to rotate over a long distance, and at the same time convert the horizontal rotation direction of the first driving wheel 4142 into the vertical rotation direction of the first driven wheel 4143.

[0083] In an alternative embodiment, the first rotating assembly 41 further includes a guide seat 415 arranged on the first movable frame 411. A sliding member 41411 is provided on the first rack, and the first rack 4141 is slidably mounted on the guide seat 415 through the guide slide rail 41411.

[0084] Specifically, a guide groove 4151 is provided on the guide seat 415, and the shape of the guide groove 4151 matches the shape of the guide groove, so that the first rack 4141 can be movably mounted in the guide groove 4151 through the guide slide rail 41411.

[0085] In an alternative embodiment, the guide seat 415 can be integrally formed with the first movable frame 411, or the guide seat 415 can be separately formed from the first movable frame 411. In this embodiment, the guide seat 415 can be separately formed from the first movable frame 411. A fixed frame mounting groove 4111 is provided on the first movable frame 411, and the first driving member 413 is mounted in the fixed frame mounting groove 4111, and then the guide seat 415 is mounted on the upper end of the first driving member 413.

[0086] Specifically, the guiding seat 415 is provided with an open driving member installation groove (not shown in the figure), and the first driving member 413 is installed in the driving member installation groove. In this embodiment, the first rack 4141 is installed on the outer side of the upper end surface of the driving member installation groove, and a guiding seat rotating shaft is provided on the outer side of the lower end surface of the driving member installation groove. The guiding seat 415 is rotatably installed in the first bearing member 416 through the guiding seat rotating shaft. The horizontal ends of the first driving member 413 and the first movable frame 411 are both fitted in the driving member installation groove.

[0087] In an alternative embodiment, the first transmission member 414 includes a first belt. Among them, both the first driving pulley 4142 and the first driven pulley 4143 are belt pulleys, that is, the first driving pulley 4142 is drivingly connected to the first driven pulley 4143 through the first belt, with a simple but practical structure.

[0088] In an alternative embodiment, the first transmission member 414 may also include a rod structure (not shown in the figure). Among them, one end of the rod structure is connected to the output end of the first driving member 413, and the other end of the rod structure is drivingly connected to the machine body 10, with a simple but practical structure.

[0089] Specifically, the rod structure includes a first rod (not shown in the figure) and a first rack (not shown in the figure). The first driving member 413 is provided with a cam structure (not shown in the figure). The first rod is installed on the cam structure and is used to drive the first rack to drive the machine body 10 to perform a swinging motion.

[0090] Among them, the first driving member 413 can be a power element such as a driving motor, a pump body, or a gas. Its main purpose is to drive the machine body 10 to perform a swinging motion through the first transmission member 414, and this application does not impose any restrictions. In this embodiment, the first driving member 413 is a driving motor. The driving motor drives the first rod to move along the track groove on the circulating fan through the cam structure, and then drives the first rack connected to the first rod to perform a linear motion. The first rack is used to drive the gear on the machine body 10 to rotate, so that the machine body 10 can rotate along with the rotation of the gear.

[0091] In an alternative embodiment, a chute (not shown in the figure) is provided on the first rod. Among them, the first rack is slidably installed in the chute, and the tooth part of the first rack is meshed and connected with the gear on the machine body 10, so that the machine body 10 can rotate along with the rotation of the gear.

[0092] In addition, the rod structure may further include a first rod (not shown in the figure), a second rod (not shown in the figure), and a third rod (not shown in the figure). One end of the first rod is connected to the output end of the first driving member, and the other end of the first rod is drivingly connected to one end of the third rod through the second rod. The other end of the third rod is drivingly connected to the body 10, so that the first driving member 413 can drive the body 10 to rotate through the rod structure.

[0093] Specifically, sliding grooves (not shown in the figure) are provided on both the first rod and the third rod. One end of the second rod is slidably installed in the sliding groove on the first rod, and the other end of the second rod is slidably installed in the sliding groove on the third rod.

[0094] When the first driving member 413 operates, the first driving member 413 drives the first rod to perform a linear motion on the circulating fan. The first rod drives the second rod to perform a linear motion through the sliding groove on the first rod, so that the second rod can slide in the sliding groove on the third rod, thereby driving the body 10 to perform a swinging motion through the third rod.

[0095] In an alternative embodiment, the rod structure further includes a sleeve (not shown in the figure). The second rod moves linearly on the circulating fan through the sleeve.

[0096] Specifically, the second rod is disposed between the first rod and the third rod, and the sliding direction of the second rod is perpendicular to the sliding direction of the first rod, so that the first rod can drive the third rod to slide or swing through the second rod, thereby driving the body 10 to perform a swinging motion.

[0097] In an alternative embodiment, one end of the third rod near the body 10 is rotatably installed on the circulating fan through a rotation fulcrum. When the second rod slides in the sliding groove on the third rod, the third rod rotates around the rotation fulcrum, thereby driving the body 10 on the third rod to perform a swinging motion.

[0098] In an alternative embodiment, the second rotating assembly 42 further includes a second driving member 423. The second driving member 423 is installed on the second movable frame 422 and is used to drive the second fixed frame 421 to rotate relative to the second movable frame 422.

[0099] In an alternative embodiment, the second rotating assembly 42 further includes a second transmission member 424. The second driving member 423 is drivingly connected to the second fixed frame 421 through the second transmission member 424 and is used to drive the second fixed frame 421 to rotate relative to the second movable frame 422.

[0100] In an alternative embodiment, an open driving member fixing groove 4221 is provided on the horizontal end of the second movable frame 421, and the second driving member 423 is installed in the driving member fixing groove 4221.

[0101] Specifically, the second rotating assembly 42 further includes a support base 425 disposed on the second movable frame 422, and the support base 425 is mounted on the upper end of the second driving member 423. In this embodiment, the second driving member 423 is a driving motor, and the shape and size of the driving member fixing groove 4221 are adapted to the shape and size of the second driving member 423. After the second driving member 423 is fixed in the driving member fixing groove 4221, the support base 425 is mounted on the upper end of the second driving member 423, so that the fixing flange of the second driving member 423 is clamped between the support base 425 and the second movable frame 422, improving the fixing stability of the second driving member 423.

[0102] Wherein, a rotating shaft portion 4251 is provided on the support base 425, and the second fixing frame 421 is rotatably mounted on the rotating shaft portion 4251 through a second transmission member 424, so that the second driving member 423 can drive the second fixing frame 421 to rotate relative to the second movable frame 422 through the second transmission member 424.

[0103] In an alternative embodiment, the second transmission member 424 includes a driving gear 4241 and a driven gear 4242, and the driven gear 4242 is in transmission connection with the driving gear 4241. In this embodiment, the driving gear 4241 is mounted on the output end of the second driving member 423, and the driven gear 4242 is fixed on the second fixing frame 421.

[0104] Specifically, a rotating shaft hole 4242a is provided on the side of the driven gear 4242 facing away from the second fixing frame 421, so that the driven gear 4242 can be rotatably mounted on the rotating shaft portion 4251 through the rotating shaft hole 4242a, which is simple but practical in structure.

[0105] After adopting the above technical solutions, the first steering direction of the driving mechanism 40 can be realized by the first driving member 413 and the second steering direction can be realized by the second driving member 423, so that the user can adjust the air supply angle of the circulation fan pair through the mutual cooperation of the first driving member 413 and the second driving member 423. In addition, the first driving member 413 and the second driving member 423 are independent of each other, that is, the angular rotation speed of each direction of the circulation fan can be controlled, and the area of the air supply angle of the circulation fan can be accurately adjusted, having good angle control function and controllability of the angular rotation speed.

[0106] In an alternative embodiment, the first driven wheel 4143 has a driven gear mounting shaft, and the first driven wheel 4143 is connected to the fixed frame bearing 417 through the driven gear mounting shaft to ensure the smooth rotation between the first driven wheel 4143 and the first movable frame 411.

[0107] In an alternative embodiment, the front housing 12 includes a wind guide cylinder 122 and a front grille 121. Among them, the front grille 121 is arranged at the front end of the wind guide cylinder 122. In this embodiment, the distance from the center of the fan blade 11 to the front grille 121 of the wind guide cylinder 122 is at least 50 mm to 70 mm to ensure that the wind guide cylinder 122 has an optimal wind guiding effect. It can be understood that if the length of the air duct is too short, it cannot play the role of guiding the wind. If the length of the air duct is too long, it will increase the weight of the front housing 12, waste materials, and increase the manufacturing cost.

[0108] After adopting the above technical solution, since the length of the wind guide cylinder 122 is limited in this application, not only can the wind guiding function of the wind guide cylinder 122 be ensured, but also the wind of the circulation fan can converge when blowing from the center of the fan blade 11 to the front grille 121, reducing the blowing area, and the wind speed also increases accordingly, thereby improving the air supply distance of the circulation fan. Then, it can be blown more evenly to the user through the front grille 121, making it more comfortable.

[0109] In an alternative embodiment, the distance from the center of the fan blade 11 to the front grille 121 of the wind guide cylinder 122 is 50 mm. Due to certain errors in the forming process of the wind guide cylinder 122, the distance from the center of the fan blade 11 to the front grille 121 of the wind guide cylinder 122 can be any value between 45 - 55 mm to ensure that the wind guide cylinder 122 has an optimal wind guiding effect.

[0110] In an alternative embodiment, the front grille 121 includes a grille outer ring and a grille inner ring. Among them, the grille inner ring is arranged inside the grille outer ring. The grille outer ring has a first air outlet grille plate 1212, and the first air outlet grille plate 1212 can allow the wind blown out by the circulation fan to spread around. The grille inner ring is used to eliminate the noise generated when the circulation fan works.

[0111] Specifically, the grille inner ring has a second air outlet grille plate 1213, and the rotation angle of the second air outlet grille plate 1213 is opposite to that of the first air outlet grille plate 1212, which can play a noise reduction role.

[0112] In an alternative embodiment, the grille inner ring includes an outer ring and a central disk 1214. Among them, the central disk is located inside the outer ring, and the second air outlet grille plate 1213 is connected between the outer ring and the central disk 1214. In this embodiment, the grille outer ring includes an outer ring edge 1211. One end of the first air outlet grille plate 1212 is connected to the outer ring edge 1211, and the other end of the first air outlet grille plate 1212 is connected to the outer ring. Among them, the diameter of the inner ring is 10 - 30 mm, so that the noise of the circulation fan can be reduced by 1.3 dB.

[0113] In an alternative embodiment, the first air outlet grille 1212 is arranged in a counterclockwise twist on the outer ring of the grille. The inner ring of the grille is a solid structure or a concentric circle structure, so as to better eliminate the noise generated when the circulation fan works.

[0114] In an alternative embodiment, the front grille 121 includes a solid inner ring of the grille and an outer ring of the grille with a first air outlet grille. The inner ring of the grille is located inside the outer ring of the grille, mainly for the purpose of reducing the noise generated when the circulation fan works.

[0115] In an alternative embodiment, the inner ring of the grille and the outer ring of the grille can be integrally formed to better control the manufacturing cost of the front grille 121.

[0116] In an alternative embodiment, the front grille 121 is detachably connected to the air guide cylinder 122. Specifically, the outer ring edge 1211 has a flange protruding towards the rear shell 13. The air guide cylinder 122 includes an outer shell 1221, an inner shell 1222 and a reinforcing rib 1223. The reinforcing rib 1223 is arranged between the outer shell 1221 and the inner shell 1222. The flange of the front grille 121 is snap-fitted on the inner shell 1222 or the reinforcing rib 1223.

[0117] In this embodiment, the number of the reinforcing ribs 1223 is multiple. The multiple reinforcing ribs 1223 are arranged at intervals in a circumferential array between the outer shell 1221 and the inner shell 1222. This can not only ensure the strength of the air guide cylinder 122, but also reduce the manufacturing cost of the air guide cylinder 122 and save a large amount of manufacturing materials. In addition, it is also convenient to form a cavity between the outer shell 1221 and the inner shell 1222 to install other electronic components of the circulation fan, making the structure of the circulation fan more compact and the design more reasonable.

[0118] In an alternative embodiment, the length that the inner shell 1222 extends towards the front grille 121 is less than the length that the outer shell 1221 extends towards the front grille 121, so that the flange is just snap-fitted on the reinforcing rib 1223, improving the connection stability between the front grille 121 and the air guide cylinder 122.

[0119] In an alternative embodiment, the rear shell 13 includes a rear grille 132. A rear shell receiving cavity 131 is provided on the rear grille 132. Among them, the driving mechanism 40 is received in the rear shell receiving cavity 131, avoiding the driving mechanism 40 affecting the appearance of the circulation fan, and at the same time, it can also protect the driving mechanism 40. When the circulation fan works, gas can enter the accommodation space from the rear grille 132 and then be discharged through the air guide cylinder 122 and the front grille 121. When the body 10 rotates, the influence of the rear shell 13 on the air duct formed by the air guide cylinder 122 is reduced, making the air intake smoother and the air volume more sufficient.

[0120] After adopting the above technical solution, since the air guide cylinder 122 surrounds the outside of the fan blade 11, the air guide cylinder 122 can be used to gather the blown air to increase the wind force, so that the gas can be discharged from the rear grille 132 along the air guide cylinder 122 and out of the front grille 121, bringing a better heat dissipation effect to the user.

[0121] In an alternative embodiment, the support assembly 30 includes a support column, and a receiving shell 31 with an open mouth 311 is arranged on the support column, and the driving mechanism 40 is installed in the receiving shell 31.

[0122] Specifically, the receiving shell 31 is cylindrical, and the shape of the rear shell receiving cavity 131 is adapted to the shape of the receiving shell 31, so that the rear shell 13 can be rotatably installed on the receiving shell 31 through the rear shell receiving cavity 131. In this embodiment, the open mouth 311 of the receiving shell 31 is arranged at the upper part of the receiving shell 31 and faces the rear shell 13. The first fixing frame 412, the first movable frame 411, the second fixing frame 421 and the second movable frame 422 are sequentially installed in the receiving shell 31 from the open mouth 311 of the receiving shell 31, and then the blower motor 14 and the bottom of the rear shell receiving cavity 131 are fixed on the second fixing frame 421, so that the entire driving mechanism 40 can be installed in the cavity formed by the rear shell receiving cavity 131 and the receiving shell 31. When the circulation fan works, the driving mechanism 40 can drive the rear shell receiving cavity 131 to rotate relative to the receiving shell 31, with a simple structure and reasonable design.

[0123] In an alternative embodiment, the first fixing frame 412 is installed in the receiving shell 31 through the first fixing frame fixing part, and the first movable frame 411, the second fixing frame 421 and the second movable frame 422 are sequentially rotatably connected to the first fixing frame 412.

[0124] In an alternative embodiment, the rear shell receiving cavity 131 is a groove formed by the rear shell 13 recessing into the accommodating space. The width of the rear shell receiving cavity 131 is greater than the overall width of the driving mechanism 40, so that the entire driving mechanism 40 can be received in the rear shell receiving cavity 131.

[0125] In an alternative embodiment, a rear shell rotating shaft hole 1313 is provided on the rear shell 13, and the output end of the blower motor 14 passes through the rear shell rotating shaft hole 1313 and is connected to the fan blade 11, so that the blower motor 14 can drive the fan blade 11 to rotate relative to the rear shell 13, bringing a better heat dissipation effect to the user.

[0126] In an alternative embodiment, the rear housing 13 is provided with a fan blade avoidance groove 1312 on the side facing away from the rear housing accommodation cavity 131. The fan blade 11 is provided with a fan blade rotating shaft 1121, and the fan blade rotating shaft 1121 is connected to the output shaft of the fan motor 14 at the position of the fan blade avoidance groove 1312, which can effectively provide sufficient installation space for the fan blade 11 and also avoid the problem of collision between the fan blade 11 and the rear housing 13.

[0127] In an alternative embodiment, the rear housing 13 is provided with a rear housing fixing portion 1311 at the position of the rear housing accommodation cavity 131. Among them, the rear housing 13 is fixed to the driving mechanism 40 through the rear housing fixing portion 1311.

[0128] Specifically, the second fixing frame 421 is provided with a fixing frame mounting portion and a fixing frame through hole 4211a. The fan motor 14 passes through the fixing frame through hole 4211a and the rear housing rotating shaft hole 1313 in sequence and then is connected to the fan blade rotating shaft 1121. The second fixing frame 421 is fixed to the rear housing fixing portion 1311 through the fixing frame mounting portion.

[0129] In an alternative embodiment, the fan blade 11 includes a fan blade fixing shaft 112 disposed at the center of the fan blade 11 and a blade assembly 111 located outside the fan blade fixing shaft 112. Among them, the fan blade rotating shaft 1121 is disposed at the center of the fan blade fixing shaft 112. In this embodiment, the blade assembly 111 includes a first blade 1111, a second blade 1112, and a third blade 1113. The first blade 1111 and the second blade 1112 are twisted in the same direction. The third blade 1113 is connected between the middle parts of the first blade 1111 and the second blade 1112. In this way, not only can the pressures on the first blade 1111 and / or the second blade 1112 be changed when the blade assembly 111 rotates, so that the regions with larger pressure differences are widely distributed, avoiding the phenomenon that the gas on the first blade 1111 and / or the second blade 1112 is prone to generate vortices or separation, but also the kinetic energy of the gas can be effectively increased, and it has the advantages of concentrating the air flow, increasing the flow rate, and reducing noise.

[0130] In an alternative embodiment, the number of the blade assemblies 111 is at least three groups. The three groups of blade assemblies 111 are evenly spaced around the fan blade fixing shaft 112 outside the fan blade fixing shaft 112, which can effectively increase the air volume output by the circulation fan and the distance of the air flow entering the indoor or environmental space, and also ensure the stability of the rotation of the fan blade 11 and reduce noise.

[0131] In an alternative embodiment, the first blade 1111 includes a first segment 11111 and a second segment 11112. The first segment 11111 is connected to the fan blade fixing shaft 112, and the second segment 11112 is connected to the first segment 11111. The third blade 1113 is disposed between the first segment 11111 and the second segment 11112, such that the blade assembly 111 functions to guide the air flow, reduce the resistance of the air flow output, thereby increasing the air flow rate, and further extending the distance of the air flow output, enhancing the adjustment effect of the indoor air flow circulation temperature.

[0132] In an alternative embodiment, the width of the first segment 11111 is different from the width of the second segment 11112 and the width of the second blade 1112. When the fan motor 14 drives the blade assembly 111 to rotate, the widths of the first segment 11111, the second segment 11112, and the second blade 1112 can generate air volumes of different sizes and blowing in different angles. These air volumes of different sizes and different angles act on the air guide cylinder 122 and are discharged from the front grille 121 along the air guide cylinder 122 and blown to the surrounding of the room, thereby reducing the temperature in the room.

[0133] In an alternative embodiment, the first segment 11111 is inclined with respect to the fan blade fixing shaft 112 to form a first angle, and the second blade 11112 is inclined with respect to the fan blade fixing shaft 112 to form a second angle. The first angle is different from the second angle, which can effectively change the flow direction of the air flow, such that the air flow is sequentially discharged from the front grille 121 and blown to the surrounding of the room.

[0134] In an alternative embodiment, the second segment 11112 is inclined with respect to the third blade 1113 to form a third angle. The third angle is different from the first angle and the second angle, which effectively changes the flow direction of the air flow again, such that the air flow is sequentially discharged from the front grille 121 and blown to the surrounding of the room.

[0135] In an alternative embodiment, the third blade 1113 is concentrically arranged with the fan blade fixing shaft 112, which can not only reduce the resistance suffered by the blade assembly 111 during operation, but also enhance the strength of the first blade 1111 and the second blade 1112, and extend the service life of the first blade 1111 and the second blade 1112.

[0136] In an alternative embodiment, the third blade 1113 has a triangular structure. Among them, the first blade 1111 is connected to one side of the third blade 1113, and the second blade 1112 is connected to the other side of the third blade 1113. The design can be carried out based on the force conditions of the first blade 1111 and the second blade 1112. While the blade assembly 111 can generate a large amount of air volume, it can also ensure the service life of the blade assembly 111. The structure is simple and the design is reasonable.

[0137] In an alternative embodiment, the circulation fan is provided with a sensor for sensing the presence of a person and an MCU control chip arranged on the circuit board 50. Among them, the sensor is electrically connected to the MCU control chip and is used to control the rotation direction of the driving mechanism 40 and the power-on of the fan motor 14.

[0138] In an alternative embodiment, the support column is provided with a sensor installation cavity 33. The sensor can be installed on the circuit board 50, or the sensor can be separately arranged from the circuit board 50. In this embodiment, both the sensor and the circuit board 50 are installed in the sensor installation cavity 33.

[0139] It should be noted that the sensor can be an infrared sensor, or the sensor can be a camera, etc. The main purpose is to enable the fan motor 14, the first driving member 413, and the second driving member 423 to be adjusted after the signal of the sensor is fed back to the MCU control chip, so as to control the rotation speed of the fan motor 14 and the rotation direction of the driving mechanism 40, etc.

[0140] After adopting the above technical solutions, since the present application uses an infrared sensor to sense the presence of a person and then transmits the signal obtained by the infrared sensor to the MCU control chip to control the switch and rotation speed of the circulation fan, it is not only more user-friendly but also energy-saving.

[0141] In an alternative embodiment, the circulation fan is further provided with a temperature sensor, and the signal of the temperature sensor can be DS18B20, so that the circulation fan can control the rotation speed of the fan according to the current room temperature and save energy.

[0142] In an alternative embodiment, the sensor installation cavity 33 is arranged below the storage shell 31. Among them, one side of the sensor installation cavity 33 is provided with a window, and the other side of the sensor installation cavity is an open end, so that the sensor can be installed in the sensor installation cavity through the open end, and then the sensor emits a signal through the window to the outside of the sensor installation cavity to obtain a detection signal.

[0143] In an alternative embodiment, the support assembly 30 further includes a first cover plate 32 which covers the open end. This not only encapsulates the sensor in the sensor installation cavity, protecting the sensor, but also does not affect the aesthetics of the circulation fan.

[0144] In an alternative embodiment, the first cover plate 32 has a concave structure, and its protruding ends are fixed in the sensor installation cavity by screws.

[0145] In addition, the sensor can also be installed above the rear housing storage cavity 131. Specifically, a sensor installation portion 1314 is provided at the upper end of the rear housing storage cavity 131. The sensor is detachably installed on the sensor installation portion 1314. This not only ensures the detection range of the sensor, but also allows the heat generated by the sensor during operation to be dissipated to the outside through the airflow generated by the body 10. Therefore, the periphery of the sensor installation portion is designed with striped holes, which is simple and reasonable.

[0146] In an alternative embodiment, the circulation fan is also provided with a display screen 60 which is electrically connected to the MCU control chip and is used to display the current room temperature, the rotation speed of the fan motor 14, the working mode of the circulation fan, etc., making it clear at a glance.

[0147] Among them, the display screen 60 can also be a touch display screen, and the user can control the rotation speed of the fan motor 14, the working mode of the circulation fan, etc. through the display screen. Or the display screen 60 can also be a flexible display screen. This application does not impose any restrictions.

[0148] In an alternative embodiment, the display screen 60 can be arranged on the end face of the first cover plate 32 and is integrally designed with the first cover plate 32. Then the first cover plate 32 is covered on the open end of the sensor installation cavity 33. The design is simple yet reasonable.

[0149] Specifically, a display screen fixing portion is provided at the bottom of the sensor installation cavity 33, and the first cover plate 32 is fixed on the display screen fixing portion through fasteners.

[0150] In this embodiment, the sensor is installed on the circuit board 50, and the circuit board 50 is embedded on the back surface of the first cover plate 32. Among them, a support structure is provided on the first cover plate, and the display screen 60 is installed on the support structure.

[0151] In an alternative embodiment, the display screen 60 can also be installed on the air guide cylinder 122, and the structure is simple and reasonable.

[0152] Specifically, a display screen installation opening 1324 is provided on the outer housing 1211, and the display screen 60 is installed on the display screen installation opening 1324.

[0153] In this embodiment, the air duct 122 further includes a support frame body 70. Among them, the display screen 60 is installed on the display screen installation opening 1324 through the support frame body 70, which can effectively provide support and protection for the display screen 60.

[0154] In an alternative embodiment, the circulation fan is further provided with a wireless communication module, and the wireless communication module can be USR-215b, so that the mobile phone can send signals to the MCU control chip through the wireless communication module to adjust the working mode of the circulation fan, or receive signals through the wireless communication receiving module and display the working status of the circulation fan on the operation interface of the mobile phone or other electronic devices.

[0155] After adopting the above technical solutions, since the circulation fan of the present application is provided with a sensor and a display screen 60, it can be determined whether there is a person within a certain range through the sensor, and the signals collected by the sensor are transmitted to the MCU control chip, and then the working status of the circulation fan can be controlled. Among them, the display screen 60 allows users to more intuitively understand the working status of the circulation fan.

[0156] In addition, the circulation fan of the present application can easily realize the left and right swing and the up and down swing of the circulation fan through the first rotating assembly 41 that rotates left and right and the second rotating assembly 42 that rotates up and down. At the same time, it has the advantages of simple and compact structure, convenient installation, and few parts, which is beneficial to the small design of the circulation fan housing at the driving position, making the whole circulation fan more compact and beautiful, and better meeting the needs of people.

[0157] In the description of the present invention, it should be noted that unless otherwise clearly specified and defined, the terms "installation", "connection", and "connection" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection. It can be a mechanical connection or an electrical connection. It can be directly connected, or indirectly connected through an intermediate medium. It can be the communication inside two elements or the interaction relationship between two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific situations.

[0158] In the present invention, unless otherwise clearly specified and defined, the first feature being "above" or "below" the second feature may include direct contact between the first and second features, or may include the first and second features not being in direct contact but in contact through other features therebetween. Moreover, the first feature being "above", "above", and "on" the second feature includes the first feature being directly above and obliquely above the second feature, or merely indicating that the first feature has a higher horizontal height than the second feature. The first feature being "below", "below", and "under" the second feature includes the first feature being directly below and obliquely below the second feature, or merely indicating that the first feature has a lower horizontal height than the second feature.

[0159] The foregoing disclosure provides many different embodiments or examples for implementing different structures of the present invention. To simplify the disclosure of the present invention, components and arrangements of specific examples are described above. Of course, they are merely examples and are not intended to limit the present invention. In addition, the present invention may repeat reference numerals and / or reference letters in different examples. Such repetition is for the purpose of simplicity and clarity and does not in itself indicate a relationship between the various embodiments and / or arrangements discussed. In addition, the present invention provides examples of various specific processes and materials, but those of ordinary skill in the art may be aware of the application of other processes and / or the use of other materials.

[0160] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "schematic embodiments", "examples", "specific examples", or "some examples", etc. means that the specific features, structures, materials or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more embodiments or examples in a suitable manner.

[0161] Although embodiments of the present invention have been shown and described, those of ordinary skill in the art can understand that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of the present invention. The scope of the present invention is defined by the claims and their equivalents.

Claims

1. A driving mechanism is applied to a circulation fan, and the circulation fan includes a body, characterized in that, Comprising: A first rotating assembly, the first rotating assembly including a first fixed frame and a first movable frame; The first fixed frame is fixed in the circulation fan, and the first movable frame is rotatably connected to the first fixed frame and forms a U shape, so that the first movable frame can have a first steering direction relative to the first fixed frame; The body is rotatably mounted on an end of the first movable frame away from the connection with the first fixed frame, so that the body and the first movable frame have a second steering direction, and the second steering direction is different from the direction of the first steering direction; The drive mechanism further includes a second rotating assembly having the second steering direction, the second rotating assembly is mounted between the first fixed frame and the first movable frame, and the body is mounted on the second rotating assembly; The second rotating assembly includes a second fixed frame and a second movable frame, the fan motor of the body is rotatably mounted on the first movable frame through the second fixed frame, the second movable frame is rotatably mounted on the first fixed frame, and the second fixed frame is rotatably connected to the second movable frame; The first rotating assembly further includes a first driving member, the first driving member is mounted on the first movable frame and is used to drive the second rotating assembly to rotate relative to the first movable frame; Both the first movable frame and the first fixed frame are in an arc structure, one end of the first movable frame is rotatably connected to one end of the first fixed frame, and both ends of the body are connected to the other ends of the first movable frame and the first fixed frame.

2. The driving mechanism according to claim 1, characterized in that, The first rotating assembly further includes a first bearing member, and the first bearing member is disposed between the first movable frame and the first fixed frame.

3. The driving mechanism according to claim 1, characterized in that, The first rotating assembly further includes a first transmission member, and the first driving member is in transmission connection with the second rotating assembly through the first transmission member.

4. The driving mechanism according to claim 3, characterized in that, The first transmission member includes a first rack, a first driving gear mounted on the first driving member, and a first driven gear mounted on the second rotating assembly, and the first driving gear is in transmission connection with the first driven gear through the first rack.

5. The driving mechanism according to claim 4, characterized in that, Tooth portions are provided at both ends of the first rack, and the first driving gear and the first driven gear are respectively disposed at both ends of the first rack.

6. The driving mechanism according to claim 4, characterized in that, A guide seat is provided on the first movable frame, a guide rail is provided on the first rack, and the first rack is slidably mounted on the guide seat through the guide rail.

7. The driving mechanism according to claim 3, characterized in that, The first transmission member further includes a first belt, and the first driving member is in transmission connection with the second rotating assembly through the first belt.

Images