Oscillating assembly and fan

Abstract

The utility model provides a head shaking assembly and a fan, the head shaking assembly is used for the fan, the fan comprises a fan head and a stand column pipe, the head shaking assembly is used for driving the fan head to rotate, and the head shaking assembly comprises a driving assembly which is installed in the stand column pipe and comprises an output shaft; the fixed seat is mounted in the upright post pipe, and a mounting hole is formed in the fixed seat; the shaft sleeve is mounted in the mounting hole; the rotating shaft can be rotatably mounted in the mounting hole through a shaft sleeve, one end of the rotating shaft is connected with the output shaft, and the other end of the rotating shaft is used for being connected with a fan head. According to the scheme, the rotating shaft is rotationally installed in the fixing base through the shaft sleeve, and the product cost can be reduced.

Description

Technical Field

[0001] The present application relates to the field of household appliances, and more particularly, to a swing component and a fan. Background Art

[0002] In related solutions, for an electric fan that swings left and right, its left and right swing components are complex in design, very large in volume, high in cost, and affect the appearance and assembly efficiency.

[0003] Therefore, how to design a swing component and a fan with a simple structure, low cost and small volume has become an urgent problem to be solved at present. Summary of the Utility Model

[0004] The utility model aims to at least solve the technical problems in the prior art or related technologies that the left and right swing components of the fan are complex in design, very large in volume, high in cost, and affect the appearance and assembly efficiency.

[0005] Therefore, an object of the utility model is to provide a swing component.

[0006] Therefore, another object of the utility model is to provide a fan.

[0007] To achieve the above object, a technical solution of the first aspect of the utility model provides a swing component for a fan. The fan includes a fan head and a standpipe. The swing component is used to drive the fan head to rotate. The swing component includes: a drive component installed in the standpipe and including an output shaft; a fixed seat installed in the standpipe, with an installation hole provided in the fixed seat; a bushing installed in the installation hole; a rotating shaft rotatably installed in the installation hole through the bushing, one end of the rotating shaft is connected to the output shaft, and the other end of the rotating shaft is used to be connected to the fan head.

[0008] According to the swing head assembly provided by the present utility model, it is used for a fan to drive the fan head to swing left and right. Among them, the fan further includes a column pipe to support and install the fan head and support and install drive components, a rotating shaft and other swing head assemblies. The swing head assembly includes a drive component, a fixed seat, a shaft sleeve and a rotating shaft. The column pipe is used to support the fan head, and the drive component is used to provide driving force to drive the fan head to swing left and right. The fixed seat is installed inside the column pipe and is used to support and install the rotating shaft. The rotating shaft is rotatably installed inside the fixed seat and can rotate relative to the fixed seat. The rotating shaft is also used to connect the fan head and the output shaft to achieve power transmission of the output shaft. The main function of the shaft sleeve is to support the rotating shaft to ensure that the rotating shaft can rotate freely inside the fixed seat without excessive offset or vibration. At the same time, by setting the shaft sleeve, the friction between the rotating shaft and the fixed seat can also be reduced. In addition, the shaft sleeve helps to keep the center position of the rotating shaft fixed, avoid unnecessary displacement of the rotating shaft during rotation, and ensure the accuracy and efficiency of transmission. That is to say, the shaft sleeve here plays the role of a bearing. In this solution, the rotating shaft is rotatably installed inside the fixed seat through the shaft sleeve, which can reduce the cost of the product.

[0009] In addition, the swing head assembly in the above technical solution provided by the present utility model may further have the following additional technical features:

[0010] In any of the above technical solutions, optionally, the swing head assembly further includes: a transmission assembly installed inside the column pipe, including a first transmission member and a second transmission member. The first transmission member is installed on the output shaft, and the second transmission member is installed on the rotating shaft. The first transmission member and the second transmission member are drivingly connected; wherein, the transmission ratio of the transmission assembly is greater than 1.

[0011] In this technical solution, a transmission assembly is provided between the output shaft and the rotating shaft. The transmission assembly is used to transmit torque. Among them, the first transmission member is the input end, and the second transmission member is the output end. In this solution, since the transmission assembly is provided and the transmission ratio of the transmission assembly is greater than 1, therefore, a smaller torque can be used to drive the rotating shaft to rotate. In this way, a low-torque drive component can be used to drive the entire rotating shaft to rotate, thereby reducing the cost of the drive component.

[0012] Exemplarily, the drive component may specifically be a motor assembly.

[0013] In any of the above technical solutions, optionally, the first transmission member is a first gear, the second transmission member is a second gear, the number of teeth of the first gear is less than the number of teeth of the second gear, and the diameter of the pitch circle of the first gear is less than the diameter of the pitch circle of the second gear.

[0014] In this technical solution, the first transmission member is a first gear, and the first gear is a small gear. The second transmission member is a second gear, and the second gear is a large gear. In this solution, the small gear can drive the large gear to form a labor-saving mechanism, so that a drive assembly with low torque can be used to drive the entire rotating shaft to rotate, thereby reducing the cost of the drive assembly. At the same time, gear transmission is convenient, reliable and relatively common, which makes the cost of the transmission assembly relatively low and the structure of the transmission assembly relatively simple.

[0015] In any of the above technical solutions, optionally, the rotating shaft and the second gear are of an integral structure. This can improve the connection strength between the rotating shaft and the second gear.

[0016] In any of the above technical solutions, optionally, the first gear is an external gear, and the second gear is an internal gear adapted to the external gear.

[0017] In this technical solution, the torque transmission between the output shaft and the rotating shaft is realized through the meshing of the internal gear and the external gear. Among them, the transmission assembly composed of the internal gear and the external gear can make the structure of the transmission assembly more compact, with better load-bearing capacity and durability.

[0018] In any of the above technical solutions, optionally, along the axial direction of the rotating shaft, a preset distance is set between the shaft sleeve and the second transmission member. Exemplarily, the shaft sleeve and the second transmission member are respectively arranged at both ends of the rotating shaft.

[0019] In this technical solution, the shaft sleeve and the second transmission member are arranged at a relatively far distance, so that two positioning supports for the rotating shaft can be formed by the shaft sleeve and the second transmission member, thereby ensuring the stability of the rotating shaft during rotation and ensuring that the rotating shaft is not prone to shaking, displacement and other situations.

[0020] In any of the above technical solutions, optionally, the head-shaking assembly further includes: a fixing plate installed in the vertical column tube, and the drive assembly is installed on the fixing plate. Further, a limiting structure for limiting the first transmission member is provided on the fixing plate. A matching structure adapted to the limiting structure is provided on the first transmission member.

[0021] In this technical solution, the head-shaking assembly further includes a fixing plate. The fixing plate is used to fixedly install the drive assembly. At the same time, a limiting structure is provided on the fixing plate. Through this limiting structure, the first transmission member, such as the first gear, can be limited to prevent the first transmission member (such as the first gear) from shifting in position, thereby accurately limiting the position of the first transmission member (such as the first gear). For example, a matching structure adapted to the limiting structure can be provided on the first transmission member to realize the axial and radial limitation of the first transmission member (such as the first gear) through the cooperation of the limiting structure and the matching structure.

[0022] Exemplarily, one of the limiting structure and the mating structure is a limiting protrusion, and the other is a limiting groove. The limiting of the first transmission member by the fixing plate can be achieved through the cooperation of the limiting protrusion and the limiting groove. Among them, the limiting protrusion can be triangular, arc-shaped, etc.

[0023] In any of the above technical solutions, optionally, an installation groove is provided on the rotating shaft, and the fixing plate includes a fixing portion located in the installation groove. A first installation hole penetrating through the fixing portion in the axial direction of the rotating shaft is provided on the fixing portion, and a positioning protrusion is provided on the bottom wall of the installation groove. The fixing portion is sleeved and installed on the positioning protrusion through the first installation hole. A through hole is provided on the positioning protrusion, and the shaking head assembly further includes a limiting member. One end of the limiting member passes through the through hole and is installed on the rotating shaft, and a limiting portion is provided at the other end of the limiting member to limit the fixing portion. A counterbore communicating with the first installation hole is provided at one end of the fixing portion away from the bottom wall of the installation groove, and the limiting portion is located in the counterbore to limit the bottom wall of the counterbore.

[0024] In this technical solution, an installation groove can be provided on the rotating shaft, and then the fixing portion can be installed in the installation groove, so as to achieve the preliminary positioning and installation between the rotating shaft and the fixing plate. At the same time, the fixing portion and the rotating shaft can be secondarily positioned and installed through the positioning protrusion and the first installation hole. Among them, the positioning protrusion and the first installation hole are in clearance fit, so that the positioning portion can rotate in the first installation hole. With this structure, through the positioning between the rotating shaft and the fixing portion, the installation position between the fixing plate and the rotating shaft can be made more precise, so as to ensure the installation accuracy of the external gear.

[0025] Further, a limiting member is also installed on the rotating shaft, and the limiting member rotates with the rotating shaft. A limiting portion is provided at the bottom of the limiting member, and the fixing portion can be limited through the limiting portion to prevent the fixing portion from detaching from the positioning protrusion. In order to reduce the friction between the limiting member and the fixing portion and enable the limiting member to rotate smoothly, a gap is provided between the limiting portion and the fixing portion in the axial direction. With this solution, the fixing portion can be limited by the limiting member, that is, the fixing portion is supported from the bottom of the fixing portion to prevent the fixing portion from moving downward and separating from the positioning protrusion, so as to ensure the relative position between the fixing plate and the rotating shaft remains unchanged.

[0026] In addition, in order to facilitate the limiting of the fixing portion by the limiting portion, a counterbore arranged in a stepped manner with the first installation hole can be provided on the fixing portion, so that the limiting portion can be installed in the counterbore to cooperate with the bottom of the counterbore through the limiting portion, thereby realizing the limiting of the fixing portion.

[0027] Exemplarily, the limiting member is an integral structure. The limiting member includes a connecting rod, and an external thread is provided on the connecting rod. The connecting rod is threadedly connected to the rotating shaft.

[0028] Exemplarily, the limiting member is a threaded connecting member, such as a bolt column. The limiting portion is a nut or a washer installed on the bolt column.

[0029] Further, the second transmission member includes an internal gear disposed on the rotating shaft, and the internal gear is disposed in the installation groove. For example, internal teeth can be formed on the inner sidewall of the installation groove to form an internal gear.

[0030] In any of the above technical solutions, optionally, a lubricating medium is filled between the bushing and the rotating shaft. The lubricating medium can be lubricating oil. By providing a lubricating medium such as lubricating oil, the friction between the bushing and the rotating shaft can be further reduced, ensuring that the rotating shaft can rotate more smoothly relative to the bushing.

[0031] In any of the above technical solutions, optionally, the bushing includes a plastic bushing or a metal bushing.

[0032] In this technical solution, the smoothness and rigidity of the bushing need to be considered. Therefore, the bushing can be made of plastic or metal according to needs.

[0033] Exemplarily, the bushing can be a POM bushing. Because POM has better smoothness.

[0034] Among them, POM, full name Polyoxymethylene or Polyformaldehyde, is a high-performance thermoplastic engineering plastic.

[0035] In any of the above technical solutions, optionally, the bushing includes an aluminum alloy bushing. Among them, the bushing is made of aluminum alloy, which can reduce costs while ensuring machining accuracy.

[0036] In any of the above technical solutions, optionally, a wire passing hole and a first wire outlet channel communicating with the wire passing hole are provided inside the rotating shaft; a second wire outlet channel communicating with the first wire outlet channel is provided on the fixed seat, and / or a wire clamping structure is provided on the outer wall of the fixed seat. Further, the wire passing hole and the first wire outlet channel are arranged to avoid the first transmission member.

[0037] In this technical solution, the power cord of the fan head and the like can enter the wire passing hole from the upper end of the rotating shaft, then exit from the first wire outlet channel, and then extend out of the fixed seat through the second wire outlet channel. This solution can route the wires inside the rotating shaft, making the structure inside the column tube more compact, thereby reducing the volume of the fan column. By providing a wire clamping structure, the wires on the fixed seat can be guided, making the column tube design more compact and preventing the wires from swaying left and right, affecting the uniform rotation of the fan head.

[0038] Further, a second transmission member is provided at the lower end of the rotating shaft, and the wire passing hole and the first wire outlet channel are arranged to avoid the first transmission member. That is, the wire passing hole and the first wire outlet channel are located on one side of the second transmission member and will not interfere with the second transmission member.

[0039] Exemplarily, the second transmission member is a second gear, and the second gear is an internal gear. The wire passing through the wire passing hole and the first wire outlet channel is located outside the second gear and passes from the upper side of the second gear, thus avoiding interference between the wire and the second transmission member.

[0040] In any of the above technical solutions, optionally, the end of the rotating shaft connected to the fan head is located outside the mounting hole. The shaking head assembly further includes: a connecting column, which is installed on the vertical column tube and is connected to the part of the rotating shaft located outside the mounting hole. Generally speaking, the connecting column is a connecting pipe, and at least part of the rotating shaft is located inside the connecting pipe. The shaking head assembly further includes a fan head bracket, which is installed on the connecting column and is used to support and install the fan head. With this structure, the connection between the shaking head assembly and the fan head can be realized through the separately arranged connecting column and fan head bracket. And the separate arrangement of the connecting column and the fan head bracket can make their respective structures relatively simple, thus facilitating processing. In other embodiments, the connecting column and the fan head bracket can also be of an integral structure.

[0041] In this technical solution, the shaking head assembly further includes a connecting column and a fan head bracket. The fan head can be better supported through the connecting column and the fan head bracket.

[0042] The technical solution of the second aspect of the present invention provides a fan, including a vertical column tube; and the shaking head assembly provided by the technical solution of the first aspect, the shaking head assembly is installed on the vertical column tube; and a fan head, the fan head is connected to the rotating shaft.

[0043] According to the fan provided by the present invention, it includes a vertical column tube, a fan head and a shaking head assembly. The shaking head assembly is installed inside the vertical column tube, the fan head is connected to the shaking head assembly, and the shaking head assembly is used to drive the fan head to rotate left and right. Among them, since this fan also has the shaking head assembly provided by the technical solution of the first aspect, therefore, this fan also includes all the beneficial effects of the shaking head assembly provided by the technical solution of the first aspect, which will not be elaborated here.

[0044] The additional aspects and advantages of the present invention will become obvious in the following description part, or be understood through the practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0045] The above and / or additional aspects and advantages of the present invention will become obvious and easy to understand from the description of the embodiments in conjunction with the following drawings, where:

[0046] Figure 1 is one of the schematic structural diagrams of the fan of the present invention;

[0047] Figure 2 is one of the schematic structural diagrams of the swing head assembly of the present utility model;

[0048] Figure 3 is the second of the schematic structural diagrams of the swing head assembly of the present utility model;

[0049] Figure 4 is the third of the schematic structural diagrams of the swing head assembly of the present utility model;

[0050] Figure 5 is the schematic assembly structure diagram of the rotating shaft and the second transmission assembly of the swing head assembly of the present utility model;

[0051] Figure 6 is the fourth of the schematic structural diagrams of the swing head assembly of the present utility model.

[0052] Among them, Figures 1 to 6 the corresponding relationship between the reference numerals and the component names in

[0053] 100 swing head assembly, 1 column pipe, 2 drive assembly, 22 output shaft, 3 fixed seat, 30 mounting hole, 32 second wire outlet channel, 34 wire clamping structure, 4 shaft sleeve, 5 rotating shaft, 52 wire passing hole, 54 first wire outlet channel, 56 positioning protrusion, 562 through hole, 58 mounting groove, 59 limiting member, 592 limiting portion, 6 transmission assembly, 62 first transmission member, 622 first gear, 64 second transmission member, 642 second gear, 7 fixing plate, 72 limiting structure, 74 fixing portion, 742 sinking groove, 744 first mounting hole, 8 connecting column, 9 fan head bracket, 200 fan, 210 fan head, 220 chassis. Detailed implementation manners

[0054] In order to more clearly understand the above objects, features and advantages of the present utility model, the present utility model will be further described in detail below with reference to the drawings and specific implementation manners. It should be noted that, without conflict, the embodiments of the present application and the features in the embodiments may be combined with each other.

[0055] In the following description, many specific details are set forth in order to fully understand the present utility model. However, the present utility model may also be implemented in other ways different from those described herein. Therefore, the protection scope of the present utility model is not limited by the specific embodiments disclosed below.

[0056] As Figures 1 to 6 shown, an embodiment of the first aspect of the present utility model provides a swing head assembly 100 and a fan 200.

[0057] As Figures 1 to 3As shown in the figure, an embodiment of the first aspect of the present utility model provides a swing head assembly 100 for a fan 200. The fan 200 includes a fan head 210, and the swing head assembly 100 is used to drive the fan head 210 to rotate. The swing head assembly 100 includes: a column pipe 1; a drive assembly 2 installed in the column pipe 1, including an output shaft 22; a fixed seat 3 installed in the column pipe 1, with an installation hole 30 provided in the fixed seat 3; a sleeve 4 installed in the installation hole 30; a rotating shaft 5 rotatably installed in the installation hole 30 through the sleeve 4. One end of the rotating shaft 5 is connected to the output shaft 22, and the other end of the rotating shaft 5 is used to be connected to the fan head 210.

[0058] According to the swing head assembly 100 provided by the present utility model, it is used for the fan 200 to drive the fan head 210 of the fan 200 to swing left and right. Among them, the swing head assembly 100 includes a column pipe 1, a drive assembly 2, a fixed seat 3, a sleeve 4 and a rotating shaft 5. The column pipe 1 is used to support the fan head 210 and support and install parts such as the drive assembly 2 and the rotating shaft 5. The drive assembly 2 is used to provide driving force to drive the fan head 210 to swing left and right. The fixed seat 3 is installed in the column pipe 1 and is used to support and install the rotating shaft 5. The rotating shaft 5 is rotatably installed in the fixed seat 3 and can rotate relative to the fixed seat 3. The rotating shaft 5 is also used to connect the fan head 210 and the output shaft 22 to achieve the power transmission of the output shaft 22. The main function of the sleeve 4 is to support the rotating shaft 5 to ensure that the rotating shaft 5 can rotate freely in the fixed seat 3 without excessive deviation or vibration. At the same time, by setting the sleeve 4, the friction between the rotating shaft 5 and the fixed seat 3 can also be reduced. In addition, the sleeve 4 also helps to keep the central position of the rotating shaft 5 fixed, avoid unnecessary displacement of the rotating shaft 5 during rotation, and ensure the accuracy and efficiency of transmission. That is to say, the sleeve 4 here plays the role of a bearing. In this solution, the rotating installation of the rotating shaft 5 in the fixed seat 3 is realized through the sleeve 4, which can reduce the cost of the product.

[0059] In any of the above embodiments, optionally, as Figure 1 、 Figure 2 、 Figure 3 and Figure 4 shown, the swing head assembly 100 further includes: a transmission assembly 6 installed in the column pipe 1, including a first transmission member 62 and a second transmission member 64. The first transmission member 62 is installed on the output shaft 22, the second transmission member 64 is installed on the rotating shaft 5, and the first transmission member 62 and the second transmission member 64 are drivingly connected; wherein, the transmission ratio of the transmission assembly 6 is greater than 1.

[0060] In this embodiment, a transmission assembly 6 is provided between the output shaft 22 and the rotating shaft 5. The transmission assembly 6 is used to transmit torque. Among them, the first transmission member 62 is the input end, and the second transmission member 64 is the output end. In this solution, since the transmission assembly 6 is provided and the transmission ratio of the transmission assembly 6 is greater than 1, therefore, a relatively small torque can be used to drive the rotation of the rotating shaft 5. In this way, a low-torque drive assembly 2 can be used to drive the entire rotating shaft 5 to rotate, thereby reducing the cost of the drive assembly 2.

[0061] Exemplarily, the drive assembly 2 may specifically be a motor assembly.

[0062] In any of the above embodiments, optionally, as Figure 1 , Figure 2 , Figure 3 and Figure 4 shown, the first transmission member 62 is a first gear 622, the second transmission member 64 is a second gear 642, the number of teeth of the first gear 622 is less than the number of teeth of the second gear 642, and the diameter of the pitch circle of the first gear 622 is less than the diameter of the pitch circle of the second gear 642.

[0063] In this embodiment, the first transmission member 62 is a first gear 622, and the first gear 622 is a small gear. The second transmission member 64 is a second gear 642, and the second gear 642 is a large gear. In this solution, the small gear can be used to drive the large gear, thereby forming a force-saving mechanism. In this way, a low-torque drive assembly 2 can be used to drive the entire rotating shaft 5 to rotate, thereby reducing the cost of the drive assembly 2. At the same time, the gear transmission ratio is convenient, reliable, and relatively common, so that the cost of the transmission assembly 6 is relatively low and the structure of the transmission assembly 6 is relatively simple.

[0064] In any of the above embodiments, optionally, the rotating shaft 5 and the second gear 642 are of an integral structure. This can improve the connection strength between the rotating shaft 5 and the second gear 642.

[0065] In any of the above embodiments, optionally, as Figure 1 , Figure 2 , Figure 3 and Figure 4 shown, the first gear 622 is an external gear, and the second gear 642 is an internal gear adapted to the external gear.

[0066] In this embodiment, the torque transmission between the output shaft 22 and the rotating shaft 5 is achieved through the meshing of the internal gear and the external gear. Among them, the transmission assembly 6 composed of the internal gear and the external gear can make the structure of the transmission assembly 6 more compact, with better load-bearing capacity and durability.

[0067] In any of the above embodiments, optionally, as Figure 3As shown, along the axial direction of the rotating shaft 5, a preset distance H is provided between the bushing 4 and the second transmission member 64. Exemplarily, the bushing 4 and the second transmission member 64 are respectively arranged at both ends of the rotating shaft 5.

[0068] In this embodiment, the bushing 4 and the second transmission member 64 are arranged at a relatively large distance, so that two positioning supports can be formed for the rotating shaft 5 through the bushing 4 and the second transmission member 64, thereby ensuring the stability of the rotating shaft 5 during rotation and ensuring that the rotating shaft 5 is not prone to shaking, displacement and other situations.

[0069] In any of the above embodiments, optionally, as Figure 1 , Figure 2 , Figure 3 and Figure 4 shown, the shaking head assembly 100 further includes: a fixing plate 7, installed in the column tube 1, and the driving assembly 2 is installed on the fixing plate 7.

[0070] Further, as Figure 2 shown, a limiting structure 72 for limiting the first transmission member 62 is provided on the fixing plate 7. A matching structure adapted to the limiting structure 72 is provided on the first transmission member 62.

[0071] In this embodiment, the shaking head assembly 100 further includes a fixing plate 7. The fixing plate 7 is used to fixedly install the driving assembly 2. At the same time, a limiting structure 72 is provided on the fixing plate 7. Through the limiting structure 72, the first transmission member 62, such as the first gear 622, can be limited to prevent the first transmission member 62 (such as the first gear 622) from shifting in position, thereby accurately limiting the position of the first transmission member 62 (such as the first gear 622). For example, a matching structure adapted to the limiting structure 72 can be provided on the first transmission member 62 to achieve axial and radial limitation of the first transmission member (such as the first gear 622) through the cooperation of the limiting structure 72 and the matching structure.

[0072] Exemplarily, one of the limiting structure 72 and the matching structure is a limiting protrusion, and the other is a limiting groove. The limiting of the first transmission member 62 by the fixing plate 7 can be achieved through the cooperation of the limiting protrusion and the limiting groove. Among them, the limiting protrusion can be triangular or arc-shaped, etc.

[0073] In any of the above technical solutions, optionally, as Figure 2 , Figure 3 and Figure 4As shown, an installation groove 58 is provided on the rotating shaft 5. The fixing plate 7 includes a fixing portion 74, and the fixing portion 74 is located within the installation groove 58. A first installation hole 744 that penetrates the fixing portion 74 in the axial direction of the rotating shaft 5 is provided on the fixing portion 74. A positioning protrusion 56 is provided on the bottom wall of the installation groove 58, and the fixing portion 74 is sleeved and installed on the positioning protrusion 56 through the first installation hole 744. A through hole 562 is provided on the positioning protrusion 56. The swing assembly 100 further includes a limiting member 59. One end of the limiting member 59 passes through the through hole 562 and is installed on the rotating shaft 5. A limiting portion 592 is provided at the other end of the limiting member 59 to limit the fixing portion 74. A counterbore 742 communicating with the first installation hole 744 is provided at one end of the fixing portion 74 away from the bottom wall of the installation groove 58. The limiting portion 592 is located within the counterbore 742 to limit the bottom wall of the counterbore 742.

[0074] In this technical solution, an installation groove 58 can be provided on the rotating shaft 5, and then the fixing portion 74 can be installed within the installation groove 58, thereby achieving the preliminary positioning and installation between the rotating shaft 5 and the fixing plate 7. At the same time, the fixing portion 74 and the rotating shaft 5 can be secondarily positioned and installed through the positioning protrusion 56 and the first installation hole 744. Among them, there is a clearance fit between the positioning protrusion 56 and the first installation hole 744, so that the positioning portion can rotate within the first installation hole 744. With this structure, through the positioning between the rotating shaft 5 and the fixing portion 74, the installation position between the fixing plate 7 and the rotating shaft 5 can be made more precise, thereby ensuring the installation accuracy of the external gear.

[0075] Furthermore, a limiting member 59 is also installed on the rotating shaft 5, and the limiting member 59 rotates along with the rotating shaft 5. A limiting portion 592 is provided at the bottom of the limiting member 59. The fixing portion 74 can be limited through the limiting portion 592 to prevent the fixing portion 74 from separating from the positioning protrusion 56. To reduce the friction between the limiting member 59 and the fixing portion 74 and enable the limiting member 59 to rotate smoothly, a clearance t is provided between the limiting portion 592 and the fixing portion 74. With this solution, the fixing portion 74 can be limited by the limiting member 59, that is, the fixing portion 74 is supported from the bottom to prevent the fixing portion 74 from moving downward and separating from the positioning protrusion 56, thereby ensuring the relative position between the fixing plate 7 and the rotating shaft 5 remains unchanged.

[0076] In addition, to facilitate the limiting of the fixing portion 74 by the limiting portion 592, a counterbore 742 that is stepped with the first installation hole 744 can be provided on the fixing portion 74, so that the limiting portion 592 can be installed within the counterbore 742 to cooperate with the bottom of the counterbore 742 through the limiting portion 592, thereby achieving the limiting of the fixing portion 74.

[0077] Exemplarily, the stopper 59 is an integrated structure and includes a connecting rod, on which an external thread is provided, and the connecting rod is threadedly connected to the rotating shaft 5 .

[0078] Exemplarily, the limiting member 59 is a threaded connection member, such as a bolt column. The limiting portion 592 is a nut or a nut or a washer installed on the bolt column.

[0079] Further, the second transmission member includes an internal gear disposed on the rotating shaft 5, and the internal gear is disposed in the mounting groove 58. For example, internal teeth may be formed on the inner side wall of the mounting groove 58 to form the internal gear.

[0080] In any of the above embodiments, optionally, a lubricating medium is filled between the sleeve 4 and the rotating shaft 5. The lubricating medium may be lubricating oil. By providing a lubricating medium such as lubricating oil, the friction between the sleeve 4 and the rotating shaft 5 can be further reduced, ensuring that the rotating shaft 5 can rotate more smoothly relative to the sleeve 4.

[0081] In any of the above embodiments, optionally, the sleeve 4 includes a plastic sleeve or a metal sleeve.

[0082] In this embodiment, the shaft sleeve 4 needs to consider smoothness and rigidity. Therefore, the shaft sleeve 4 can be made of plastic or metal material as required.

[0083] Exemplarily, the sleeve 4 may be a POM sleeve, because POM has better smoothness.

[0084] Among them, POM, the full name of which is Polyoxymethylene or Polyformaldehyde, is a high-performance thermoplastic engineering plastic.

[0085] In any of the above embodiments, the shaft sleeve 4 may be optionally made of an aluminum alloy shaft sleeve, wherein the shaft sleeve 4 is made of an aluminum alloy, which can reduce the cost while ensuring the processing accuracy.

[0086] In any of the above embodiments, optionally, Figure 2 , Figure 3 , Figure 5 and Figure 6 As shown, the rotating shaft 5 is provided with a wire hole 52 and a first wire outlet channel 54 communicating with the wire hole 52; the fixing seat 3 is provided with a second wire outlet channel 32 communicating with the first wire outlet channel 54, and / or the outer wall of the fixing seat 3 is provided with a wire clamping structure 34. Figure 3 As shown, further, the wire hole 52 and the first wire outlet channel 54 are arranged to avoid the first transmission member 62 .

[0087] In this embodiment, the power cord of the fan head 210 of the fan 200 can enter the wire passing hole 52 from the upper end of the rotating shaft 5, then exit through the first wire outlet channel 54, and then extend out of the fixing base 3 through the second wire outlet channel 32. This solution can route the wires inside the rotating shaft 5, making the structure inside the upright pipe 1 more compact, thereby reducing the volume of the upright of the fan 200. Further, a second transmission member 64 is provided at the lower end of the rotating shaft 5, and the wire passing hole 52 and the first wire outlet channel 54 are arranged to avoid the first transmission member 62. That is, the wire passing hole 52 and the first wire outlet channel 54 are located on one side of the second transmission member 64 and will not interfere with the second transmission member 64. By providing the wire clamping structure 34, the wires on the fixing base 3 can be guided, which can make the design of the upright pipe 1 more compact and prevent the wire from swaying left and right, affecting the uniform rotation of the fan head.

[0088] Wherein, Figure 3 The arrow in indicates the wire routing path.

[0089] Exemplarily, as Figure 3 shown, the second transmission member 64 is a second gear 642, and the second gear 642 is an internal gear. The wires passing through the wire passing hole 52 and the first wire outlet channel 54 are located outside the second gear 642 and are routed from the upper side of the second gear 642, thus avoiding interference between the wires and the second transmission member 64.

[0090] In any of the above embodiments, optionally, as Figure 1 shown, the end of the rotating shaft 5 connected to the fan head 210 is located outside the mounting hole 30. The swing head assembly 100 further includes: a connecting column 8, mounted on the upright pipe 1 and connected to the part of the rotating shaft 5 located outside the mounting hole 30; a fan head bracket 9, mounted on the connecting column 8 and used to support and mount the fan head 210. In this embodiment, the swing head assembly 100 further includes the connecting column 8 and the fan head bracket 9. The fan head 210 can be better supported through the connecting column 8 and the fan head bracket 9. Generally, the connecting column 8 is a connecting pipe, and at least part of the rotating shaft 5 is located inside the connecting pipe. The swing head assembly 100 further includes a fan head bracket 9, mounted on the connecting column 8 and used to support and mount the fan head 210. With this structure, the connection between the swing head assembly 100 and the fan head 210 can be realized through the separately arranged connecting column 8 and fan head bracket 9. The separate arrangement of the connecting column 8 and the fan head bracket 9 can make their respective structures relatively simple, thus facilitating processing. In other embodiments, the connecting column 8 and the fan head bracket 9 can also be of an integral structure.

[0091] As Figures 1 to 6 shown, an embodiment of the second aspect of the present invention provides a fan 200, including an upright pipe 1; a fan head 210; and the swing head assembly 100 provided in the embodiment of the first aspect. The swing head assembly 100 is mounted on the upright pipe 1, and the fan head 210 is connected to the rotating shaft 5.

[0092] According to the fan 200 provided by the present utility model, it includes a column tube 1, a fan head 210, and a swing assembly 100. The fan head 210 is connected to the swing assembly 100, and the swing assembly 100 is used to drive the fan head 210 to rotate left and right. Among them, since the fan 200 also has the swing assembly 100 provided by the embodiment of the first aspect, therefore, the fan 200 also includes all the beneficial effects of the swing assembly 100 provided by the embodiment of the first aspect, which will not be elaborated here.

[0093] Optionally, the fan 200 further includes a chassis 220, and the column tube 1 is installed on the chassis 220.

[0094] The following will further introduce the swing assembly 100 and the fan 200 in the present application with a specific embodiment.

[0095] Currently, the number of parts of the left and right swing control mechanisms on the market is too large, the assembly is complex, and the cost remains high. In this embodiment, while streamlining the number of parts, low-cost solutions are selected as much as possible in terms of material selection. At the same time, through structural optimization and process assembly optimization, automated production is realized, further reducing the production cost and improving the production efficiency.

[0096] This embodiment relates to a left and right swing angle control mechanism circulation fan. As Figure 1 shown, the left and right swing mechanism is located inside the column tube 1 at the middle position of the fan 200. The fixing seat 3 is fastened inside the column tube 1 of the circulation fan. The fixing seat 3 is internally provided with a bushing 4. The rotating shaft (i.e., the rotating shaft 5) is installed into the fixing seat 3 from top to bottom. At the same time, a wire routing hole is provided inside the rotating shaft to facilitate wire routing up and down (as Figure 2 and Figure 5 shown); the fixing plate 7 for fixing the motor is installed inside the fixing seat 3 from bottom to top. The rotating shaft, the fixing seat 3, and the fixing plate 7 are formed into a whole by locking screws. At the same time, the rotating shaft can rotate; the small gear is installed on the stepping motor, and the two are fastened on the fixing plate 7 together by screws.

[0097] The left and right swing control mechanism rotates through the stepping motor, transmits the torque to the small gear, and the small gear transmits the torque to the rotating shaft through a specific speed ratio. Here, it is similar to the principle of a labor-saving lever. The low torque removes the rotation of the rotating shaft, so that a low-torque stepping motor can be used to drive the entire swing mechanism to rotate, thereby reducing the cost of the stepping motor. The rotating shaft rotates inside the fixing seat 3. The main function of the bushing 4 is to fix the rotating shaft inside the fixing seat 3 to prevent the rotating shaft from shaking. Its second function is to allow the rotating shaft to rotate freely and smoothly. We can use the method of adding lubricating oil to the bushing 4 to replace the bearing, thereby further reducing the cost of the swing mechanism.

[0098] As Figure 6As shown, a wire clamping structure 34 is designed on the fixed seat 3, making the design of the column pipe 1 more compact. At the same time, it prevents the wire from shaking left and right, affecting the uniform rotation of the moving mechanism.

[0099] As Figure 2 and Figure 3 shown, a rotating hole is provided on the fixed plate 7. The rotating shaft includes a driven gear, and the driven gear is sleeved with a small gear. The center of the driven gear and the center of the shaft sleeve 4 are coaxially arranged, which is convenient for installation and limitation. As Figure 2 shown, a small gear limiting protrusion is formed on the fixed plate 7.

[0100] This combined solution can be used in appliances with a shaking function such as a heater, and the shaft sleeve 4 can be replaced with a bearing, plastic material, etc.

[0101] In the description of this specification, terms such as "connection", "installation", "fixation", etc. should be understood in a broad sense. For example, "connection" can be a fixed connection, a detachable connection, or an integral connection; it can be directly connected or indirectly connected through an intermediate medium. For those of ordinary skill in the art, the specific meanings of the above terms in this utility model can be understood according to specific circumstances.

[0102] In the description of this specification, the descriptions of terms such as "one embodiment", "some embodiments", "specific embodiments", etc. mean 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 this utility model. 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 can be combined in a suitable manner in any one or more embodiments or examples.

[0103] The above is only the preferred embodiment of this utility model and is not used to limit this utility model. For those skilled in the art, this utility model can have various changes and modifications. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of this utility model shall be included within the protection scope of this utility model.

Claims

1. A shaking head assembly for a fan, the fan including a fan head and a standpipe, the shaking head assembly being used to drive the fan head to rotate, characterized in that The shaking head assembly includes: A driving assembly installed inside the upright pipe and including an output shaft; A fixed seat installed inside the upright pipe, with an installation hole provided inside the fixed seat; A bushing installed inside the installation hole; A rotating shaft rotatably installed inside the installation hole through the bushing. One end of the rotating shaft is connected to the output shaft, and the other end of the rotating shaft is used to connect to the fan head.

2. The shaking head assembly according to claim 1, wherein It further includes: A transmission assembly installed inside the upright pipe and including a first transmission member and a second transmission member. The first transmission member is installed on the output shaft, the second transmission member is installed on the rotating shaft, and the first transmission member and the second transmission member are drivingly connected; Wherein, the transmission ratio of the transmission assembly is greater than 1.

3. The shaking head assembly according to claim 2, wherein The first transmission member is a first gear, the second transmission member is a second gear, the number of teeth of the first gear is less than that of the second gear, and the diameter of the pitch circle of the first gear is less than that of the second gear.

4. The shaking head assembly according to claim 3, wherein The rotating shaft and the second gear are of an integral structure; and / or The first gear is an external gear, and the second gear is an internal gear adapted to the external gear.

5. The shaking head assembly according to claim 2, wherein Along the axial direction of the rotating shaft, a preset distance H is provided between the bushing and the second transmission member.

6. The shaking head assembly according to claim 2, wherein, It further includes: A fixing plate installed inside the upright pipe. The driving assembly is installed on the fixing plate, and a limiting structure for limiting the first transmission member is provided on the fixing plate; A matching structure adapted to the limiting structure is provided on the first transmission member.

7. The shaking head assembly according to claim 6, wherein An installation groove is provided on the rotating shaft, and the fixing plate includes a fixing portion located inside the installation groove; A first installation hole penetrating through the fixing portion along the axial direction of the rotating shaft is provided on the fixing portion. A positioning protrusion is provided on the bottom wall of the installation groove. The fixing portion is sleeved and installed on the positioning protrusion through the first installation hole, and a through hole is provided on the positioning protrusion; The shaking head assembly further includes a limiting member. One end of the limiting member passes through the through hole and is installed on the rotating shaft, and a limiting portion is provided at the other end of the limiting member to limit the fixing portion; Wherein, a counterbore communicating with the first installation hole is provided at one end of the fixing portion away from the bottom wall of the installation groove, and the limiting portion is located inside the counterbore to limit the bottom wall of the counterbore.

8. The shaking head assembly according to any one of claims 1 to 7, wherein A lubricating medium is filled between the bushing and the rotating shaft.

9. The shaking head assembly according to any one of claims 1 to 7, wherein The bushing includes a plastic bushing or a metal bushing.

10. The shaking head assembly according to any one of claims 2 to 7, wherein A wire passing hole and a first wire outlet channel communicating with the wire passing hole are provided inside the rotating shaft, and the wire passing hole and the first wire outlet channel are arranged to avoid the first transmission member. A second wire outlet channel communicating with the first wire outlet channel is provided on the fixed seat, and / or a wire clamping structure is provided on the outer wall of the fixed seat.

11. A fan, characterized in that, Comprising: A vertical column tube; And A swing head assembly according to any one of claims 1 to 10, the swing head assembly being mounted on the vertical column tube; A fan head, connected to the rotating shaft.

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