Hairdressing tool
By incorporating movable components and drive mechanisms within the hair dryer, the problem of a single airflow direction is solved, achieving flexible airflow adjustment and simplified storage.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-12
- Publication Date
- 2026-03-03
AI Technical Summary
Existing hair dryers have a single airflow direction, which cannot meet the diverse needs of consumers, and additional nozzle accessories are troublesome to install, remove, and store.
The hairdryer body contains movable components and a drive unit. The drive unit moves the movable components to block different air outlets, thereby changing the airflow direction without the need for additional nozzle accessories.
It allows for flexible adjustment of the hair dryer's airflow direction, simplifies the usage process, improves the user experience, and avoids storage problems caused by additional accessories.
Smart Images

Figure CN223958448U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of hair styling equipment technology, specifically, to a hair styling tool. Background Technology
[0002] In related technologies, hair dryers have a single airflow direction, which cannot meet the different usage needs of consumers. In order to change the airflow direction of hair dryers, many manufacturers will equip hair dryers with multiple nozzle accessories. However, using nozzle accessories to change the airflow direction is not only troublesome to install and disassemble, but multiple nozzle accessories will also make storage inconvenient.
[0003] Therefore, existing technologies need to be improved and developed. Utility Model Content
[0004] The purpose of this utility model is to provide a hair styling tool that allows a hair dryer to change the airflow direction without additional nozzle accessories, and the absence of additional nozzle accessories makes the hair styling tool easier to store.
[0005] This utility model provides a hair styling tool, comprising:
[0006] The hair dryer body has a first air outlet and a second air outlet on the side wall of its housing. The first air outlet and the second air outlet are set at an angle α, where 0°<α≤90°.
[0007] The switching mechanism includes a movable component and a driving component; the movable component is disposed inside the blower body; the driving component is disposed on the blower body and connected to the movable component; the movable component can block the first air outlet or the second air outlet under the drive of the driving component.
[0008] According to one embodiment of the present invention, the aforementioned driving component includes a knob, and the movable component includes a rotating shaft, a driving gear, and a movable plate; the rotating shaft is rotatably disposed within the body of the hair dryer, and one end of it is connected to the driving component; the driving gear is sleeved on the rotating shaft; the movable plate is movably disposed within the body of the hair dryer, and the movable plate is provided with a rack, which meshes with the driving gear, and the movable plate can block the first air outlet or the second air outlet under the drive of the knob, the driving gear, and the rack.
[0009] According to one embodiment of the present invention, the number of the aforementioned drive gears and the number of the racks are both two. The two drive gears are respectively sleeved on both ends of the rotating shaft, and the two racks are respectively disposed on both ends of the movable plate. The two drive gears mesh with the two racks respectively.
[0010] According to one embodiment of the present invention, the driving component mentioned above includes a push rod, and the movable component includes a movable plate; the movable plate is movably disposed inside the blower body and connected to the push rod, and the movable plate can block the first air outlet or the second air outlet under the push of the push rod.
[0011] According to one embodiment of the present invention, the movable plate described above is provided with a first opening and a second opening; the first opening is movably corresponding to the first air outlet; and the second opening is movably corresponding to the second air outlet.
[0012] According to one embodiment of the present invention, the aforementioned movable plate is provided with a guide limiting strip, and the inner side wall of the housing of the blower body is provided with a guide limiting groove. The guide limiting strip is located in the guide limiting groove and can move within the guide limiting groove.
[0013] According to one embodiment of the present invention, the driving component includes a knob, and the movable component includes a rotating shaft and a movable plate; the movable plate is connected to the rotating shaft, and the movable plate can block the first air outlet or the second air outlet under the drive of the knob and the rotating shaft.
[0014] According to one embodiment of the present invention, both the first air outlet and the second air outlet include multiple through holes, which are arranged in a straight line.
[0015] According to one embodiment of the present invention, the side wall of the housing of the hair dryer body described above has a flat portion, and the first air outlet and the second air outlet are both opened on the flat portion, and the first air outlet is arranged perpendicular to the flat portion.
[0016] According to one embodiment of the present invention, the side wall of the housing further has a third air outlet, the third air outlet being located on the side of the first air outlet away from the second air outlet, the third air outlet and the first air outlet forming an angle β, 0°<β≤90°, and the third air outlet and the second air outlet forming an angle γ, 0°<γ≤180°; the movable component can, under the drive of the driving member, block the first air outlet and the second air outlet, or the first air outlet and the third air outlet, or the second air outlet and the third air outlet.
[0017] The beneficial effects of this utility model are as follows: The hair styling tool of this utility model sets up a movable component connected to the driving component in the body of the hair dryer, so that the movable component can block the first air outlet or the second air outlet under the drive of the driving component, thereby realizing the change of the air direction of the hair dryer to meet the different usage needs of consumers. Attached Figure Description
[0018] The accompanying drawings, which are included to provide a further understanding of this application and form part of this application, illustrate exemplary embodiments and are used to explain this application, but do not constitute an undue limitation of this application. In the drawings:
[0019] Figure 1 This is a schematic diagram of the structure of the hair-plasticizing tool in Embodiment 1 of this utility model;
[0020] Figure 2 This is a cross-sectional view of the hair-making tool according to Embodiment 1 of the present invention. Figure 1 ;
[0021] Figure 3 This is a cross-sectional view of the hair-making tool according to Embodiment 1 of the present invention. Figure 2 ;
[0022] Figure 4 This is a schematic diagram of the switching mechanism in its first state according to Embodiment 1 of this utility model;
[0023] Figure 5 This is a schematic diagram of the switching mechanism in the second state in Embodiment 1 of this utility model;
[0024] Figure 6 This is a cross-sectional view of the hair-dressing tool in Embodiment Six of this utility model. Figure 1 .
[0025] Explanation of reference numerals in the attached figures:
[0026] 1. Hair dryer body; 11. Housing; 111. First air outlet; 1111. Through hole; 112. Second air outlet; 113. Cavity; 114. Air inlet; 115. Flat part; 116. Third air outlet; 12. Fan motor; 13. Control circuit board; 14. Heating element; 15. Guide limiting groove; 2. Movable component; 21. Rotating shaft; 22. Drive gear; 23. Movable plate; 231. First opening; 232. Second opening; 233. Guide limiting strip; 24. Rack; 3. Drive component; 31. Knob. Detailed Implementation
[0027] The following drawings will disclose several embodiments of this utility model. For clarity, many practical details will be described in the following description. However, it should be understood that these practical details should not be used to limit this utility model. That is, in some embodiments of this utility model, these practical details are not essential. In addition, for the sake of simplicity, some conventional structures and components will be shown in the drawings in a simple schematic manner.
[0028] It should be noted that all directional indicators (such as up, down, left, right, front, back, etc.) in this utility model embodiment are only used to explain the relative positional relationship and movement of each component in a certain specific posture (as shown in the figure). If the specific posture changes, the directional indicator will also change accordingly.
[0029] Furthermore, in this utility model, the use of terms such as "first" and "second" is for descriptive purposes only and does not specifically refer to any order or sequence, nor is it intended to limit the utility model. They are merely used to distinguish components or operations described with the same technical terms and should not be construed as indicating or implying their relative importance or implicitly specifying the number of indicated technical features. Therefore, a feature defined with "first" or "second" may explicitly or implicitly include at least one of those features. Additionally, the technical solutions of various embodiments can be combined with each other, but only if they are feasible for those skilled in the art. If a combination of technical solutions is contradictory or impossible to implement, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection claimed by this utility model.
[0030] To further understand the content, features, and effects of this utility model, the following embodiments are provided, and detailed descriptions are given below in conjunction with the accompanying drawings:
[0031] Example 1
[0032] like Figure 1 , Figure 2 , Figure 3 , Figure 4 and Figure 5 As shown, the present invention provides a hair styling tool, including a straight-tube hair dryer body 1 and a switching mechanism.
[0033] The hair dryer body 1 includes a housing 11, a fan motor 12, a control circuit board 13, and a heating element 14. The side wall of the housing 11 has a first air outlet 111 and a second air outlet 112, which are set at an angle α. A cavity 113 is formed inside the housing 11, selectively communicating with either the first air outlet 111 or the second air outlet 112. An air inlet 114 communicating with the cavity 113 is provided on the side wall of the housing 11. The fan motor 12, the control circuit board 13, and the heating element 14 are all disposed within the cavity 113, and both the fan motor 12 and the heating element 14 are electrically connected to the control circuit board 13. Specifically, 0° < α ≤ 90°.
[0034] The switching mechanism includes a movable component 2 and a driving component 3. The movable component 2 is disposed inside the blower body 1. The driving component 3 is disposed on the blower body 1 and connected to the movable component 2. The movable component 2 can block the first air outlet 111 or the second air outlet 112 under the drive of the driving component 3, so that the cavity 113 can selectively communicate with the first air outlet 111 or the second air outlet 112.
[0035] In this embodiment, the driving component 3 includes a knob 31, and the movable component 2 includes a rotating shaft 21, a driving gear 22, and a movable plate 23. The rotating shaft 21 is rotatably disposed inside the hair dryer body 1, and one end of the rotating shaft 21 is connected to the driving component 3. The driving gear 22 is sleeved on the rotating shaft 21. The movable plate 23 is movably disposed inside the hair dryer body 1, and the movable plate 23 is provided with a rack 24, which meshes with the driving gear 22. The movable plate 23 can block the first air outlet 111 or the second air outlet 112 under the drive of the knob 31, the driving gear 22, and the rack 24.
[0036] In practical application, if the first air outlet 111 is selected, rotating the knob 31 forward will drive the rotating shaft 21 to rotate, which in turn drives the drive gear 22 to rotate. The drive gear 22 drives the movable plate 23 to move via the rack 24, causing the movable plate 23 to block the second air outlet 112. External air enters the cavity 113 through the air inlet 114 and then is blown out through the first air outlet 111, thus achieving air outlet 111. If the second air outlet 112 is selected, rotating the knob 31 in reverse will drive the rotating shaft 21 to rotate in the opposite direction, which in turn drives the drive gear 22 to rotate in the opposite direction. The drive gear 22 drives the movable plate 23 to move in the opposite direction via the rack 24, causing the movable plate 23 to block the first air outlet 111. External air enters the cavity 113 through the air inlet 114 and then is blown out through the second air outlet 112, thus achieving air outlet 112.
[0037] In practical applications, in order to achieve better results, the number of both the first air outlet 111 and the second air outlet 112 can be set to multiple.
[0038] Preferably, there are two drive gears 22 and two racks 24. The two drive gears 22 are respectively sleeved on both ends of the rotating shaft 21, and the two racks 24 are respectively set on both ends of the movable plate 23. The two drive gears 22 mesh with the two racks 24 respectively. With this technical solution, compared with using one drive gear 22 and one rack 24, the torque can be transmitted to both ends of the movable plate 23 simultaneously through the rotating shaft 21 when the knob 31 is rotated, so that both ends of the movable plate 23 are subjected to force at the same time, ensuring that the movable plate 23 is subjected to force evenly. This ensures that the movable plate 23 can completely block the first air outlet 111 or the second air outlet 112 after it moves into place, avoiding the situation where insufficient blocking causes the first air outlet 111 and the second air outlet 112 to vent air at the same time.
[0039] Preferably, the movable plate 23 is provided with a guide limiting strip 233, and the inner side wall of the housing 11 of the hair dryer body 1 is provided with a guide limiting groove 15. The guide limiting strip 233 is located in the guide limiting groove 15 and can move within the guide limiting groove 15. When the movable plate 23 moves, the guide limiting strip 233 cooperates with the guide limiting groove 15 to ensure the moving accuracy of the movable plate 23. In addition, when the movable plate 23 moves into position, the end of the guide limiting strip 233 will abut against the end side wall of the guide limiting groove 15. At this time, the knob 31 can no longer be rotated to indicate to the consumer that the movable plate has moved into position.
[0040] Specifically, the guide limit strip 233 is disposed on the side of the movable plate 23 away from the drive gear 22, and the guide limit groove 15 is formed on the inner side wall of the housing 11.
[0041] Specifically, there are two guide limit bars 233 and two guide limit grooves 15. The two guide limit bars 233 are respectively set at both ends on the side of the movable plate 23 away from the drive gear 22, and the two guide limit grooves 15 are respectively opened at the corresponding positions on the inner side wall of the housing 11 and the side of the movable plate 23 away from the drive gear 22.
[0042] Preferably, both the first air outlet 111 and the second air outlet 112 include multiple through holes 1111, which are arranged in a straight line at intervals. This technical solution helps to distribute the airflow more evenly, reduce turbulence, and thus make the blown air more stable, thereby improving the hair drying efficiency.
[0043] Preferably, the side wall of the housing 11 of the hair dryer body 1 has a flat portion 115, and both the first air outlet 111 and the second air outlet 112 are formed on the flat portion 115, with the first air outlet 111 being perpendicular to the flat portion 115. By providing the flat portion 115 on the side wall of the hair dryer body 1 and having both the first air outlet 111 and the second air outlet 112 formed on the flat portion 115, the movable plate 23 can be designed as a simple flat plate structure, which is convenient for processing and production.
[0044] Preferably, the fan motor 12 in the cavity 113 is positioned near the air inlet 114, and the heating element 14 is positioned near the first air outlet 111 and the second air outlet 112; the control circuit board 13 is positioned between the fan motor 12 and the heating element 14. This technical solution allows cool air from the outside to be blown onto the control circuit board 13 by the fan motor 12, cooling the control circuit board 13 and preventing excessive heat generated during operation from affecting the performance of the hair styling tool.
[0045] Example 2
[0046] The difference between this embodiment and Embodiment 1 is that the movable plate 23 in this embodiment is provided with a first opening 231 and a second opening 232. The first opening 231 corresponds to the first air outlet 111. The second opening 232 corresponds to the second air outlet 112. In specific applications, if the first air outlet 111 is selected for air outlet, the switching mechanism is in the first state (e.g., Figure 4 As shown), at this time, the first opening 231 is connected to the first air outlet 111, and the second opening 232 is misaligned with the second air outlet 112 (i.e., the second opening 232 and the second air outlet 112 are not connected). External air enters the cavity 113 through the air inlet 114, and then exits through the first opening 231 and the first air outlet 111. If the second air outlet 112 is selected for air outlet, the switching mechanism is in the second state (e.g., ...). Figure 5 As shown in the diagram, at this time, the second opening 232 is connected to the second air outlet 112, and the first opening 231 is misaligned with the first air outlet 111 (i.e., the first opening 231 and the first air outlet 111 are not connected). External air enters the cavity 113 sequentially through the air inlet 114, and then exits through the second opening 232 and the second air outlet 112. With this technical solution, compared to not having the first opening 231 and the second opening 232 on the movable plate 23, the travel distance of the movable plate 23 is shortened when switching back and forth between the first air outlet 111 and the second air outlet 112, thereby reducing the switching time and effectively improving the switching efficiency.
[0047] Example 3
[0048] The difference between this embodiment and Embodiment 1 is that in this embodiment, the driving component 3 includes a push rod, and the movable component 2 includes a movable plate 23. The movable plate 23 is movably disposed inside the blower body 1 and connected to the push rod. The movable plate 23 can block the first air outlet 111 or the second air outlet 112 under the push of the push rod.
[0049] In practical applications, if the first air outlet 111 is selected for airflow, the push rod is pushed, causing the push rod to move the movable plate 23 to block the second air outlet 112, thus allowing air to flow from the first air outlet 111. If the second air outlet 112 is selected for airflow, the push rod is pushed in the opposite direction, causing the push rod to move the movable plate 23 to block the first air outlet 111, thus allowing air to flow from the second air outlet 112.
[0050] Example 4
[0051] The difference between this embodiment and Embodiment 3 is that the movable plate 23 in this embodiment is provided with a first opening 231 and a second opening 232. The first opening 231 corresponds to the first air outlet 111. The second opening 232 corresponds to the second air outlet 112. In practical applications, if the first air outlet 111 is selected to discharge air, the switching mechanism is in the first state. At this time, the first opening 231 is connected to the first air outlet 111, and the second opening 232 is misaligned with the second air outlet 112 (i.e., the second opening 232 and the second air outlet 112 are not connected). External air enters the cavity 113 sequentially through the air inlet 114, and then is blown out through the first opening 231 and the first air outlet 111. If the second air outlet 112 is selected to discharge air, the switching mechanism is in the second state. At this time, the second opening 232 is connected to the second air outlet 112, and the first opening 231 is misaligned with the first air outlet 111 (i.e., the first opening 231 and the first air outlet 111 are not connected). External air enters the cavity 113 sequentially through the air inlet 114, and then is blown out through the second opening 232 and the second air outlet 112. With this technical solution, compared to not having the first opening 231 and the second opening 232 on the movable plate 23, the travel distance of the movable plate 23 is shortened when switching back and forth between the first air outlet 111 and the second air outlet 112, thereby reducing the switching time and effectively improving the switching efficiency.
[0052] Example 5
[0053] The difference between this embodiment and Embodiment 1 is that in this embodiment, the driving component 3 includes a knob 31, and the movable component 2 includes a rotating shaft 21 and a movable plate 23. The movable plate 23 is connected to the rotating shaft 21, and the movable plate 23 can block the first air outlet 111 or the second air outlet 112 under the drive of the knob 31 and the rotating shaft 21.
[0054] In practical application, if the first air outlet 111 is selected for airflow, rotating the knob 31 in the forward direction will cause the rotating shaft 21 to rotate, which in turn will cause the movable plate 23 to rotate, thus blocking the second air outlet 112 and allowing air to flow from the first air outlet 111. If the second air outlet 112 is selected for airflow, rotating the knob 31 in the reverse direction will cause the rotating shaft 21 to rotate in the reverse direction, thus blocking the first air outlet 111 and allowing air to flow from the second air outlet 112.
[0055] Example 6
[0056] like Figure 6As shown, the difference between this embodiment and Embodiment 2 is that the side wall of the housing 11 in this embodiment also has a third air outlet 116. The third air outlet 116 is located on the side of the first air outlet 111 away from the second air outlet 112. The third air outlet 116 and the first air outlet 111 form an angle β, where 0° < β ≤ 90°, and the third air outlet 116 and the second air outlet 112 form an angle γ, where 0° < γ ≤ 180°. In specific applications, the movable plate 23 of the movable component 2 can simultaneously block the first air outlet 111 and the second air outlet 112, or simultaneously block the first air outlet 111 and the third air outlet 116, or simultaneously block the second air outlet 112 and the third air outlet 116, under the drive of the driving component 3.
[0057] In practical application, the movable plate 23 has a third opening that corresponds to the third air outlet 116. When the movable plate 23 blocks the first air outlet 111 and the second air outlet 112, the first opening 231 is misaligned with the first air outlet 111, the second opening 232 is misaligned with the second air outlet 112, and the third opening corresponds to the third air outlet 116, from which air is blown out; when the movable plate 23 blocks the first air outlet 111 and the third air outlet 116 ... third air outlet 116, the second opening 232 is misaligned with the third air outlet 116, the third opening 231 is misaligned with the third air outlet 116, the third opening 232 is misaligned with the third air outlet 116, the third opening 231 is misaligned with the third air outlet 116, the third opening 232 is misaligned with the third air outlet 116, the third opening 231 is misaligned with the third air outlet 116, the third opening 232 is misaligned with the third air outlet 116, the third opening 231 is misaligned with the third air outlet 116, the third opening 232 is misaligned with the third air outlet 116, the third opening 231 is misaligned with the third air outlet 116, the third opening 232 is misaligned with the third air outlet 116, the third opening 232 is misaligned with the third air outlet 116, the third opening The second opening 232 is offset from the first air outlet 111, the third opening is offset from the third air outlet 116, and the second opening 232 corresponds to the second air outlet 112, with air blowing out from the second air outlet 112; when the movable plate 23 blocks the second air outlet 112 and the third air outlet 116, the second opening 232 is offset from the second air outlet 112, the third opening is offset from the third air outlet 116, the first opening 231 corresponds to the first air outlet 111, and air blows out from the first air outlet 111.
[0058] In practical applications, since everyone has a different dominant hand, some people are right-handed and some are left-handed. Taking the right hand holding the hair dryer body 1 as an example, when the second air outlet 112 is selected to emit air, and the second air outlet 112 is tilted downward, if the left hand holds the hair dryer body 1, the second air outlet 112 tilted downward will become tilted upward. At this time, the moving plate 23 can be moved by the driving component 3, so that the moving plate 23 simultaneously blocks the first air outlet 111 and the second air outlet 112, so that the air blows out from the third air outlet 116, so that there is no difference in the user experience when using the hair dryer body 1 with the left hand and the right hand.
[0059] In summary, in one or more embodiments of this utility model, the hair styling tool of this utility model provides an active component 2 connected to the driving component 3 inside the hair dryer body 1, so that the active component 2 can block the first air outlet 111 or the second air outlet 112 under the drive of the driving component 3, thereby changing the airflow direction of the hair dryer to meet different user needs.
[0060] The above description is merely an embodiment of this utility model and is not intended to limit the scope of this utility model. Various modifications and variations can be made to this utility model by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principle of this utility model should be included within the scope of the claims of this utility model.
Claims
1. A hair styling tool, characterized in that, include: The hair dryer body (1) has a first air outlet (111) and a second air outlet (112) on the side wall of its housing (11). The first air outlet (111) and the second air outlet (112) are set at an angle α, where 0°<α≤90°. The switching mechanism includes a movable component (2) and a driving component (3); the movable component (2) is disposed inside the blower body (1); the driving component (3) is disposed on the blower body (1) and connected to the movable component (2); the movable component (2) can block the first air outlet (111) or the second air outlet (112) under the drive of the driving component (3).
2. The hair styling tool according to claim 1, characterized in that, The driving component (3) includes a knob (31), and the movable component (2) includes a rotating shaft (21), a driving gear (22), and a movable plate (23). The rotating shaft (21) is rotatably disposed inside the blower body (1), and one end of it is connected to the driving component (3). The driving gear (22) is sleeved on the rotating shaft (21). The movable plate (23) is movably disposed inside the blower body (1). The movable plate (23) is provided with a rack (24), which meshes with the driving gear (22). The movable plate (23) can block the first air outlet (111) or the second air outlet (112) under the drive of the knob (31), the driving gear (22), and the rack (24).
3. The hair styling tool according to claim 2, characterized in that, The number of drive gears (22) and racks (24) are both two. The two drive gears (22) are respectively sleeved on both ends of the rotating shaft (21), and the two racks (24) are respectively set on both ends of the movable plate (23). The two drive gears (22) mesh with the two racks (24) respectively.
4. The hair styling tool according to claim 2, characterized in that, The driving component (3) includes a push rod, and the movable component (2) includes a movable plate (23); the movable plate (23) is movably disposed inside the blower body (1) and connected to the push rod, and the movable plate (23) can block the first air outlet (111) or the second air outlet (112) under the push of the push rod.
5. The hair styling tool according to claim 3 or 4, characterized in that, The movable plate (23) is provided with a first opening (231) and a second opening (232); the first opening (231) is movably corresponding to the first air outlet (111); the second opening (232) is movably corresponding to the second air outlet (112).
6. The hair styling tool according to claim 3 or 4, characterized in that, The movable plate (23) is provided with a guide limiting strip (233), and the inner side wall of the housing (11) of the blower body (1) is provided with a guide limiting groove (15). The guide limiting strip (233) is located in the guide limiting groove (15) and can move in the guide limiting groove (15).
7. The hair styling tool according to claim 1, characterized in that, The driving component (3) includes a knob (31), and the movable component (2) includes a rotating shaft (21) and a movable plate (23); the movable plate (23) is connected to the rotating shaft (21), and the movable plate (23) can block the first air outlet (111) or the second air outlet (112) under the drive of the knob (31) and the rotating shaft (21).
8. The hair styling tool according to claim 1, characterized in that, Both the first air outlet (111) and the second air outlet (112) include multiple through holes (1111), which are arranged in a straight line.
9. The hair styling tool according to claim 1, characterized in that, The side wall of the housing (11) of the blower body (1) has a flat portion (115), and the first air outlet (111) and the second air outlet (112) are both opened on the flat portion (115), and the first air outlet (111) is arranged perpendicular to the flat portion (115).
10. The hair styling tool according to claim 1, characterized in that, The side wall of the housing (11) also has a third air outlet (116), which is located on the side of the first air outlet (111) away from the second air outlet (112). The third air outlet (116) and the first air outlet (111) form an angle β, where 0° < β ≤ 90°, and the third air outlet (116) and the second air outlet (112) form an angle γ, where 0° < γ ≤ 180°. The movable component (2) can block the first air outlet (111) and the second air outlet (112), or the first air outlet (111) and the third air outlet (116), or the second air outlet (112) and the third air outlet (116) under the drive of the drive component (3).