Fan oscillating structure and blowing device

Abstract

The utility model discloses a fan oscillating structure and a blowing device. The fan oscillating structure comprises a first shell and a second shell capable of rotating relative to the first shell. The first shell is provided with a first gear and a rotation feedback piece which is arranged in an elastic reset movement mode relative to the direction of the first gear. A second gear and a driving motor for driving the second gear to rotate are arranged on the second shell; the first gear is meshed with the second gear; the second gear can rotate around the first gear, or the second gear can drive the first gear to rotate around the axis of the first shell. The fan head shaking structure is optimally designed, the air outlet direction and the head shaking direction of the fan are separately adjusted through one set of structure, and it is avoided that internal elements of the fan are damaged due to improper rotation of a user. When the air outlet direction of the fan needs to be adjusted, adjustment can be completed only by twisting the second shell, meanwhile, rotation feedback is provided for a user, and use is convenient.

Description

Technical Field

[0001] The present application relates to the field of fans, and in particular to a fan shaking structure and a blowing device. Background Art

[0002] In the hot summer, fans have become a must-have item for people to get rid of the heat. With people's demand for convenient use, lighter and more portable fans are becoming more and more popular.

[0003] In the prior art, a fan includes a fan head and a base. For a fan with a shaking head function, the fan head can be driven directly by a motor or driven by a motor and a gear to rotate relative to the base. When the user only needs to adjust the air outlet direction of the fan without using the shaking head function, the user can either directly rotate the entire fan or rotate the fan head. However, the former is inconvenient to use, and the latter is prone to gear wear or motor damage due to improper force by the user, which has certain limitations. Utility Model Content

[0004] The purpose of the present application is to provide a fan shaking structure and a blowing device to address the above-mentioned defects.

[0005] The present application provides a fan shaking structure, including: a first shell, and a second shell that can rotate relative to the first shell; the first shell is provided with a first gear, and a rotating feedback member that is elastically resettable relative to the direction of the first gear; the second shell is provided with a second gear and a driving motor for driving the second gear to rotate; the first gear is meshingly connected with the second gear; the second gear can rotate around the first gear, or the second gear can drive the first gear to rotate around the axis of the first shell.

[0006] Optionally, the rotation feedback member is composed of a spring and a block; one end of the spring abuts against the inner wall of the first shell, and the other end of the spring abuts against the surface of the block facing away from the first gear; the block is embedded in any tooth groove of the first gear.

[0007] Optionally, the first shell is provided with a groove for installing the spring and the block, and a gear movable groove for allowing the second gear to move; one end of the spring abuts against the inner surface of the groove, and the other end of the spring abuts against the surface of the block facing away from the first gear.

[0008] Optionally, a shaft sleeve extending toward the second shell is provided in the first shell; a convex shaft passing through the shaft sleeve is provided at one end of the second shell extending toward the first shell, and a buckle is provided at the end of the convex shaft; and the first gear sleeve is arranged on the outside of the shaft sleeve.

[0009] Optionally, a limit block is provided on the buckle surface, and a stop block matching with the limit block is provided in the first shell, and the stop block extends in a direction away from the second shell.

[0010] Optionally, the second shell includes a first connecting part and a second connecting part; the drive motor is arranged in a cavity formed by the first connecting part and the second connecting part; the rotating shaft of the drive motor passes through the second connecting part and is connected to the second gear; and the convex shaft is arranged on the second connecting part.

[0011] Optionally, the convex shaft and the sleeve are connected via a first bearing.

[0012] Optionally, the first shell and the second shell are connected via a second bearing; a bump is provided on the second bearing; and the bump is used to block the opening of the groove.

[0013] Optionally, the first gear is coaxially arranged with the first housing.

[0014] In order to achieve the purpose of the present application, the present application also provides a blowing device, which includes a fan shaking head structure as described in any one of the above items.

[0015] The beneficial effects of the embodiments of the present application are as follows: the present application utilizes a rotating feedback member that can elastically reset relative to the direction of the first gear and is arranged next to the first gear. When the fan shakes its head, the second gear rotates on its own and around the first gear under the drive of the driving motor; when adjusting the air outlet direction of the fan, it is only necessary to twist the second shell. Under the action of external force, the second shell drives the second gear to clamp the first gear and rotate together around the axis of the first shell, that is, the first gear rotates on its own, thereby adjusting the air outlet direction of the fan. At the same time, the rotating feedback member is squeezed to perform an elastic reset movement, thereby providing rotation feedback to the user. The use is convenient, and the shaking of the fan head and the adjustment of the air outlet direction are completed separately, thereby preventing the user from damaging the fan components due to improper force. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The above and / or additional aspects and advantages of the present application will become apparent and easily understood from the following description of the embodiments in conjunction with the accompanying drawings, in which:

[0017] Figure 1 This is an exploded schematic diagram of a fan shaking structure according to a specific embodiment of the present application;

[0018] Figure 2 A schematic diagram of a fan shaking structure according to a specific embodiment of the present application;

[0019] Figure 3 For a specific embodiment of this application Figure 1 The structural diagram at A in the middle;

[0020] Figure 4 A partial schematic diagram of a fan shaking structure of a specific embodiment of the present application Figure 1 ;

[0021] Figure 5 A partial schematic diagram of a fan shaking structure of a specific embodiment of the present application Figure 2 ;

[0022] Figure 6 A partial schematic diagram of a fan shaking structure of a specific embodiment of the present application Figure 3 ;

[0023] Figure 7 A partial schematic diagram of a fan shaking structure of a specific embodiment of the present application Figure 4 ;

[0024] Figure 8 A partial schematic diagram of a fan shaking structure of a specific embodiment of the present application Figure 5 ;

[0025] Fig. 9 For a specific embodiment of this application Figure 8 A cross-sectional schematic diagram at BB in FIG.

[0026] Fig.10 This is a schematic structural diagram of a second bearing according to a specific embodiment of the present application.

[0027] Description of the drawings: 1. First shell; 2. Second shell; 3. First gear; 4. Second gear; 5. Rotational feedback member; 6. Driving motor; 11. Mounting portion; 12. Bushing; 13. Groove; 14. Gear movable groove; 15. First bearing; 16. Buckle; 17. Second bearing; 21. First connecting portion; 22. Second connecting portion; 23. Protruding shaft; 51. Spring; 52. Block; 111. Stopper; 161. Limiting block; 171. Protruding block. DETAILED DESCRIPTION

[0028] In order to facilitate the understanding of the utility model, the utility model is described in more detail below in conjunction with the accompanying drawings and specific embodiments. It should be noted that when an element is described as "fixed to" another element, it can be directly on the other element, or there can be one or more centered elements between them. When an element is described as "connected to" another element, it can be directly connected to the other element, or there can be one or more centered elements between them. The terms "vertical", "horizontal", "left", "right" and similar expressions used in this specification are for illustrative purposes only.

[0029] Unless otherwise defined, all technical and scientific terms used in this specification have the same meanings as those commonly understood by technicians in the technical field of the present invention. The terms used in this specification are only for the purpose of describing specific embodiments and are not used to limit the present invention. The term "and / or" used in this specification includes any and all combinations of one or more related listed items.

[0030] Embodiment 1

[0031] like Figures 1 to 3 As shown, a fan shaking structure comprises: a first housing 1, and a second housing 2 which can rotate relative to the first housing 1; the first housing 1 is provided with a first gear 3, and a rotating feedback member 5 which is arranged to elastically return to the direction of the first gear 3; the second housing 2 is provided with a second gear 4 and a driving motor 6 for driving the second gear 4 to rotate; the first gear 3 is meshedly connected with the second gear 4; the second gear 4 can rotate around the first gear 3, or the second gear 4 can drive the first gear 3 to rotate around the axis of the first housing 1. Wherein, the first gear 3 is coaxially arranged with the first housing 1. In the above-mentioned first housing 1 and second housing 2, the first housing 1 can be the housing of the base, and the second housing 2 can be the housing of the fan head, or the first housing 1 can be the lower housing of the base, and the second housing 2 can be the upper housing of the base, but no matter which part the first housing 1 and the second housing 2 are, the second housing 2 can always rotate relative to the first housing 1, that is, when the second housing 2 rotates relative to the first housing 1, it drives the fan head to rotate together. In this embodiment, the first housing 1 is the lower housing of the base, and the second housing 2 is the upper housing of the base, wherein the second housing 2 is connected to the fan head.

[0032] In the above embodiment, the driving motor 6 is arranged on the second shell 2, and the rotating shaft of the driving motor 6 is connected to the second gear 4, and there is no connection relationship between the second gear 4 and the first shell 1. The above-mentioned second gear 4 can rotate around the first gear 3, or the second gear 4 can drive the first gear 3 to rotate around the axis of the first shell 1, which is the transmission mode of the first gear 3 and the second gear 4 in this structure. One is that the first gear 3 does not rotate by itself, and the second gear 4 rotates by itself to rotate around the first gear 3; the other is that the second gear 4 does not rotate by itself to drive the first gear 3 to rotate. For the first transmission mode, under the drive of the driving motor 6, the second gear 4 rotates by itself. At this time, the first gear 3 is restricted by the rotating feedback member 5 and cannot rotate by itself. Therefore, when the second gear 4 rotates by itself, it can only rotate around the first gear 3, thereby realizing the shaking function of the fan. For the second transmission mode, the second shell 2 rotates under the action of external force, driving the drive motor 6 and the second gear 4 to rotate together. At this time, the drive motor 6 does not work, so that the second gear 4 does not rotate. The elastic force of the rotating feedback member 5 is smaller than the external force. Therefore, through the meshing connection between the first gear 3 and the second gear 4, the second gear 4 drives the first gear 3 to rotate, thereby adjusting the air outlet direction of the fan. In the process of adjusting the air outlet direction of the fan, the rotating feedback member 5 will be squeezed by the first gear 3 to perform an elastic reset movement, providing rotation feedback to the user, so that the user can know the amplitude of the current fan adjustment of the air outlet direction.

[0033] The first of the two transmission modes mentioned above is a transmission mode that can only occur when the drive motor 6 is powered on. At this time, the fan head automatically starts to reciprocate under the drive of the second gear 4; the second transmission mode can occur regardless of whether the drive motor 6 is powered on, that is, whether the fan is shaking its head or not, the user can manually change the air outlet direction of the fan head, and achieve corresponding rotation feedback by rotating the feedback member 5 to enhance the user experience. The rotation feedback mentioned above is usually the sound generated by the rotating feedback member 5 when it is working, that is, the user can generate the rotation feedback sound as long as he manually triggers the rotating feedback member 5.

[0034] like Figure 3 As shown, the rotation feedback member 5 is composed of a spring 51 and a block 52; one end of the spring 51 abuts against the inner wall of the first housing 1, and the other end of the spring 51 abuts against the surface of the block 52 facing away from the first gear 3; the block 52 is embedded in any tooth groove of the first gear 3.

[0035] In the above embodiment, when the first gear 3 does not rotate, the spring 51 will not be squeezed; when the first gear 3 rotates, the clamping block 52 switches from one tooth groove of the first gear 3 to another tooth groove, and during this process, the spring 51 will be squeezed to generate elastic force, which will push the clamping block 52 toward the first gear 3. In the process of continuous rotation of the first gear 3, the clamping block 52 will make continuous reciprocating motion relative to the first gear 3.

[0036] In another optional implementation, the rotation feedback member 5 may be a combination of a spring 51 and a pawl, and the pawl is clamped in the tooth groove of the first gear 3 to limit the first gear 3 .

[0037] like Figure 4 and Figure 5 As shown, the first housing 1 is provided with a groove 13 for installing a spring 51 and a block 52, and a gear movable groove 14 for allowing the second gear 4 to move; one end of the spring 51 abuts against the inner surface of the groove 13, and the other end of the spring 51 abuts against the surface of the block 52 facing away from the first gear 3.

[0038] Specifically, a mounting portion 11 is provided in the first housing 1, and a groove 13 and a gear movable groove 14 are located in the direction from the mounting portion 11 to the second housing 2. In the above embodiment, a portion of the mounting portion 11 is arched, and the other portion is the gear movable groove 14. The gear movable groove 14 is used to provide space for the second gear 4 to move in the mounting portion 11. Although the second gear 4 is arranged in the gear movable groove 14, there is no connection interference between the second gear 4 and the first housing 1. A space for accommodating the first gear 3 is also provided on the outer side of the gear mounting shaft. The groove 13 is arranged in the middle of the arch and is connected to the space for accommodating the first gear 3. The width of the groove 13 is slightly larger than the maximum width of the block 52, so that the block 52 can maintain elastic reciprocating motion relative to the first gear 3, but the block 52 will not deviate in direction during the reciprocating motion due to the excessive width, which affects the normal feedback of the block 52, and thus continuously provides rotation feedback for the user to adjust the air outlet direction of the fan.

[0039] like Figure 1 and Figure 5 As shown, the first shell 1 is provided with a sleeve 12 extending toward the second shell 2; one end of the second shell 2 extending toward the first shell 1 is provided with a convex shaft 23 penetrating the sleeve 12, and a buckle 16 is provided at the end of the convex shaft 23; the first gear 3 is sleeved on the outer side of the sleeve 12.

[0040] Specifically, a sleeve 12 is provided in the mounting portion 11, and the sleeve 12 is located between the groove 13 and the gear mounting groove. The first gear 3 is sleeved on the outer side of the sleeve 12 and can rotate around the sleeve 12. Since the first gear 3 is coaxially arranged with the first housing 1, the sleeve 12 is also coaxially arranged with the first housing 1. The buckle 16 and the protruding shaft 23 are detachably connected, and the buckle 16 is located on the side of the mounting portion 11 facing away from the second housing 2. After the protruding shaft 23 passes through the sleeve 12, the buckle 16 is fixedly connected to the protruding shaft 23 by screws, so that the first housing 1 and the second housing 2 are relatively fixed in the vertical direction.

[0041] like Figure 7 As shown, a limit block 161 is disposed on the side surface of the buckle 16 , and a stop block 111 matching with the limit block 161 is disposed in the first shell 1 , and the stop block 111 extends in a direction away from the second shell 2 .

[0042] Specifically, two limit blocks 161 are provided on the side surface of the buckle 16, and there are two stop blocks 111. The two limit blocks 161 and the two stop blocks 111 are not distributed along a straight line, but are distributed in a fan shape. By setting the limit blocks 161 and the stop blocks 111 to cooperate, the fan's shaking angle amplitude and the adjustment angle amplitude of the air outlet direction are limited.

[0043] In a further embodiment, a positioning block is provided on the convex shaft 23, and a positioning hole is provided on the buckle 16. The cooperation between the positioning block and the positioning hole can prevent the staff from installing the buckle 16 in the wrong direction when installing the buckle 16 and the convex shaft 23, thereby facilitating the staff to assemble the fan.

[0044] like Figure 1 and Figure 6 As shown, the second shell 2 includes a first connecting portion 21 and a second connecting portion 22; the drive motor 6 is arranged in a cavity surrounded by the first connecting portion 21 and the second connecting portion 22; the rotating shaft of the drive motor 6 passes through the second connecting portion 22 and is connected to the second gear 4; the convex shaft 23 is arranged on the second connecting portion 22.

[0045] The drive motor 6 is arranged in the space formed by the first connection part 21 and the second connection part 22. The drive motor 6 is fixedly connected to the first connection part 21 by screws, and the second connection part 22 is also fixedly connected to the first connection part 21 by screws. The rotating shaft of the drive motor 6 passes through the second connection part 22 and is connected to the second gear 4. The cross-sectional shape of the rotating shaft of the drive motor 6 is an oval circle. Through this structural design, when the second housing 2 is driven to rotate by an external force, the drive motor 6 and the second gear 4 will rotate together with the second housing 2, thereby driving the first gear 3 to rotate, so as to adjust the air outlet direction of the fan.

[0046] like Figure 1 , Figure 2 and Fig. 9As shown, the protruding shaft 23 is connected to the shaft sleeve 12 via a first bearing 15 .

[0047] Specifically, the first bearing 15 is a rolling bearing, which can make the cooperation between the convex shaft 23 and the sleeve 12 smoother. At the same time, the first bearing 15 can keep the convex shaft 23 always parallel to the axis of the first housing 1.

[0048] like Figure 1 and Figure 8 As shown, the first housing 1 and the second housing 2 are connected via a second bearing 17 ; a protrusion 171 is provided on the second bearing 17 ; the protrusion 171 is used to block the opening of the groove 13 .

[0049] A plane bearing, namely a second bearing 17, is disposed between the second connection portion 22 and the mounting portion 11, so that the second connection portion 22 can rotate more conveniently and smoothly. The protrusion 171 blocks the opening of the groove 13, and can prevent the spring 51 and the block 52 from being separated from the groove 13.

[0050] The specific implementation process of the fan shaking structure in this embodiment is as follows: if the fan needs to shake its head, the drive motor 6 starts to drive the second gear 4 to rotate. At this time, the first gear 3 is restricted by the block 52 and cannot transmit to the second gear 4. The first gear 3 does not rotate, and the second gear 4 rotates around the first gear 3 to achieve the fan shaking. If the air outlet direction of the fan needs to be adjusted, just twist the second shell 2. At this time, the drive motor 6 does not work, the second gear 4 does not rotate, and the second gear 4 drives the first gear 3 to rotate around the axis of the first shell 1 under the drive of the second shell 2, that is, the first gear 3 rotates under the action of the second gear 4, so as to adjust the air outlet direction of the fan. At this time, the block 52 is squeezed by the first gear 3 and compresses the spring 51, so that the block 52 performs an elastic reset movement relative to the first gear 3, providing rotation feedback for the user.

[0051] Embodiment 2

[0052] Embodiment 2 of the present application provides a blowing device, including the fan shaking structure of embodiment 1.

[0053] It should be noted that the blowing device in this embodiment includes (but is not limited to): bladeless fans, desktop fans, floor fans, spherical fans, neck fans, handheld fans, industrial fans, air conditioners, hair dryers and other products that need to promote air circulation. The fan connection structure in the first embodiment and the second embodiment is assembled on the above products.

[0054] The present application optimizes the design of the fan shaking structure, and uses a set of structures to achieve separate adjustment of the fan's wind direction and shaking, preventing the user from damaging the fan's internal components due to improper rotation. When the fan's wind direction needs to be adjusted, the adjustment can be completed by twisting the second shell, while providing rotation feedback to the user, which is convenient to use.

[0055] It should be noted that the preferred embodiments of the present application are given in the specification and drawings of the present application. However, the present application can be implemented in many different forms and is not limited to the embodiments described in the specification. These embodiments are not intended to be additional limitations on the content of the present application. The purpose of providing these embodiments is to make the understanding of the disclosure of the present application more thorough and comprehensive. In addition, the above-mentioned technical features continue to be combined with each other to form various embodiments not listed above, which are all considered to be within the scope of the present invention; further, for ordinary technicians in this field, they can be improved or transformed according to the above description, and all these improvements and transformations should belong to the scope of protection of the claims attached to the present application.

Claims

1. A fan shaking structure, characterized in that: include: A first shell, and a second shell that can rotate relative to the first shell; the first shell is provided with a first gear and a rotating feedback member that is elastically reset and moves relative to the first gear; the second shell is provided with a second gear and a driving motor for driving the second gear to rotate; the first gear is meshingly connected with the second gear; the second gear can rotate around the first gear, or the second gear can drive the first gear to rotate around the axis of the first shell.

2. The fan shaking structure according to claim 1, characterized in that: The rotation feedback member is composed of a spring and a block; one end of the spring abuts against the inner wall of the first shell, and the other end of the spring abuts against the surface of the block facing away from the first gear; the block is embedded in any tooth groove of the first gear.

3. The fan shaking structure according to claim 2, characterized in that: The first shell is provided with a groove for installing the spring and the block, and a gear movable groove for allowing the second gear to move; one end of the spring abuts against the inner surface of the groove, and the other end of the spring abuts against the surface of the block facing away from the first gear.

4. The fan shaking structure according to claim 1, characterized in that: The first shell is provided with a shaft sleeve extending toward the second shell; one end of the second shell extending toward the first shell is provided with a convex shaft penetrating the shaft sleeve, and a buckle is provided at the end of the convex shaft; the first gear sleeve is arranged on the outside of the shaft sleeve.

5. The fan shaking structure according to claim 4, characterized in that: A limit block is provided on the side surface of the buckle, and a stop block matched with the limit block is provided in the first shell, and the stop block extends in a direction away from the second shell.

6. The fan shaking structure according to claim 4, characterized in that: The second shell includes a first connecting part and a second connecting part; the drive motor is arranged in a cavity surrounded by the first connecting part and the second connecting part; the rotating shaft of the drive motor passes through the second connecting part and is connected to the second gear; the convex shaft is arranged on the second connecting part.

7. The fan oscillating structure according to claim 4, characterized in that: The convex shaft and the shaft sleeve are connected via a first bearing.

8. The fan shaking structure according to claim 3, characterized in that: The first shell and the second shell are connected via a second bearing; a convex block is provided on the second bearing; and the convex block is used to block the opening of the groove.

9. The fan shaking structure according to any one of claims 1 to 5, characterized in that: The first gear is coaxially arranged with the first housing.

10. A blowing device, characterized in that: It comprises a fan shaking head structure as described in any one of claims 1-9.

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