Air nozzle accessory and blower

Abstract

The utility model provides an air nozzle accessory and a blower, the air nozzle accessory is provided with a mounting end and an air outlet end which are oppositely arranged, and an air outlet channel penetrating through the mounting end and the air outlet end, the air outlet channel is arranged in an annular shape, and the air outlet channel is provided with an air inlet located at the mounting end and an air outlet located at the air outlet end. In the radial direction of the air outlet channel, the radial size of the air outlet is smaller than that of the air inlet. The air nozzle accessory and the air blower can effectively reduce noise.

Description

Technical Field

[0001] This utility model relates to the field of electrical appliances, and in particular to a nozzle accessory and a hair dryer. Background Technology

[0002] As people's demand for hair drying increases, high-speed hair dryers are becoming increasingly popular due to their higher power and airflow, which significantly shortens drying time. Hair dryers often have nozzle attachments that can be connected to the air outlet to increase and concentrate the airflow for styling purposes. However, while increasing airflow, this can also lead to excessive noise from the hair dryer.

[0003] Therefore, it is necessary to improve existing nozzle accessories and hair dryers to solve the above problems. Utility Model Content

[0004] The purpose of this invention is to provide a nozzle accessory and a hair dryer that can effectively reduce noise.

[0005] To achieve the above-mentioned utility model objectives, this utility model provides a nozzle accessory having an installation end and an air outlet end arranged opposite to each other, and an air outlet channel extending through the installation end and the air outlet end. The air outlet channel is arranged in a ring shape and has an air inlet located at the installation end and an air outlet located at the air outlet end. In the radial direction of the air outlet channel, the radial dimension of the air outlet is smaller than the radial dimension of the air inlet.

[0006] As a further improvement of this utility model, the air outlet channel has two opposing inner walls, at least one of which extends in a curved shape concave towards the outside of the air outlet channel, so that in the air outlet direction, the radial dimension at the middle position of the air outlet channel is greater than the radial dimensions of the air inlet and the air outlet.

[0007] As a further improvement of this utility model, both inner walls extend in a curved shape with a central indentation towards the outer side of the air outlet channel.

[0008] As a further improvement of this utility model, at least one rib is provided in the air outlet channel, the rib extending radially between the inner walls on both sides and connecting the inner walls on both sides.

[0009] As a further improvement of this utility model, the air outlet channel is provided with a plurality of ribs spaced apart along the circumferential direction. The width of some of the ribs is greater than the width of other ribs, the number of the ribs with larger widths is less than the number of other ribs, and the ribs with larger widths are arranged adjacent to each other.

[0010] As a further improvement of this utility model, the nozzle accessory has a base with an annular first inner shell, the air outlet channel is formed in an annular shape on the outside of the first inner shell, and the air outlet end of the first inner shell is curved.

[0011] As a further improvement of this utility model, the nozzle accessory also includes a first magnetic suction member housed in the base. The base includes a lower cover, an intermediate shell located inside the lower cover, and an air outlet ring. The first inner shell is formed in the air outlet ring, and the air outlet channel is formed between the intermediate shell and the first inner shell. The first magnetic suction member is clamped in the space formed by the lower cover, the intermediate shell, and the air outlet ring.

[0012] As a further improvement of this utility model, the base has an installation cavity that is open towards the air outlet end, and the nozzle accessory further includes a fragrance component installed in the installation cavity, the fragrance component being located on the outside of the air outlet channel in the radial direction.

[0013] As a further improvement of this utility model, the fragrance component includes a fragrance carrier housed in the mounting cavity and a top cover assembled on the base and covering the mounting cavity, wherein a drainage channel for fragrance gas to flow out is formed between the top cover and the intermediate shell.

[0014] As a further improvement of this utility model, the fragrance component also includes a second magnetic member fixed to the upper cover, the second magnetic member attracting the first magnetic member to fix the upper cover to the base.

[0015] As a further improvement of this utility model, the drainage channel has a first end away from the fragrance carrier and a second end close to the fragrance carrier, wherein the distance from the first end to the central axis of the nozzle accessory is less than the distance from the second end to the central axis.

[0016] As a further improvement of this utility model, the air outlet ring also has a second inner shell located outside the first inner shell and a latching arm extending downward and inward from the top of the second inner shell. The intermediate shell has a first latching part protruding outward. When the intermediate shell is assembled into the base from top to bottom, the first latching part passes downward over the latching arm and locks with its free end.

[0017] As a further improvement of this utility model, the intermediate housing also has a second latching portion that protrudes outward in the radial direction. The second latching portion and the first latching portion are staggered in the vertical direction. The lower cover has an upwardly protruding arm, and the free end of the protruding arm is locked with the second latching portion.

[0018] As a further improvement of this utility model, the lower cover includes a base plate and an outer peripheral wall erected on the base plate. The inner wall surface of the outer peripheral wall is provided with a third snap-fit ​​part, and the intermediate housing is provided with a locking groove that cooperates with the third snap-fit ​​part.

[0019] To achieve the above-mentioned utility model objectives, this utility model also provides a hair dryer, which includes a hair dryer body and the aforementioned nozzle accessory, wherein the nozzle accessory is detachably connected to the air outlet end of the hair dryer body via the mounting end.

[0020] The beneficial effects of this utility model are as follows: By setting the radial dimension of the air outlet of the air nozzle accessory to be smaller than that of the air inlet, the airflow velocity when entering the air outlet will be increased. The moderate change in airflow velocity helps to reduce the noise generated by the rapid change in airflow, thereby reducing noise pollution. Attached Figure Description

[0021] Figure 1 This is a three-dimensional assembly diagram of the nozzle accessory of this utility model.

[0022] Figure 2 for Figure 1 Top view of the nozzle attachment shown.

[0023] Figure 3 for Figure 1 A partial exploded view of the nozzle accessory shown.

[0024] Figure 4 for Figure 3 A further exploded view of the nozzle accessory shown.

[0025] Figure 5 for Figure 4 A three-dimensional view of the air outlet ring of the nozzle accessory shown.

[0026] Figures 6 to 8 for Figure 1 The sectional view of the nozzle accessory shown.

[0027] In the picture:

[0028] 100. Nozzle accessory; 100A. Installation end; 100B. Air outlet end; 101. Air outlet duct; 101a. Air inlet; 101b. Air outlet; 1012. Inner side wall; 1013. Inner side wall; 102. Airflow channel;

[0029] 10. Lower cover; 11. Substrate; 12. Outer wall; 121. Third latching part; 13. Extending arm;

[0030] 20. Intermediate housing; 201. First latching part; 202. Second latching part; 203. Locking groove; 21. First wall part; 212. Slot; 23. Second wall part; 24. Top wall; 240. Mounting cavity;

[0031] 30. Air outlet ring; 31. Rib; 311. First rib; 312. Second rib; 32. First inner shell; 34. Second inner shell; 35. Clip arm;

[0032] 40. First magnetic chuck;

[0033] 50. Top cover; 51. Stop section;

[0034] 60. Fragrance carrier;

[0035] 70. Second magnetic chuck; 71. Flange. Detailed Implementation

[0036] The present invention will now be described in detail with reference to the embodiments shown in the accompanying drawings. However, these embodiments do not limit the present invention, and any modifications to the mechanism, method, or function made by those skilled in the art based on these embodiments are included within the protection scope of the present invention.

[0037] The terms used herein, such as "up," "down," "left," "right," "front," and "back," indicating spatial relative position, are for illustrative purposes to describe the relationship of one feature relative to another, as shown in the accompanying drawings. It is understood that, depending on the product's placement, these terms may be intended to include different orientations besides those shown in the figures, and should not be construed as limiting the claims. Furthermore, the descriptive term "horizontal" used herein is not entirely equivalent to being perpendicular to the direction of gravity, and allows for a certain angle of inclination.

[0038] Figures 1 to 8 The present invention is shown as a preferred embodiment of the nozzle accessory 100. In this embodiment, the nozzle accessory 100 has an installation end 100A and an air outlet end 100B arranged opposite to each other, and an air outlet channel 101 that passes through the installation end 100A and the air outlet end 100B. For ease of explanation, the installation end 100A of the nozzle accessory 100 will be regarded as the lower end and the air outlet end 100B as the upper end in the following description.

[0039] In this embodiment, the air outlet channel 101 is arranged in a ring shape and has an air inlet 101a located at the mounting end 100A and an air outlet 101b located at the air outlet end 100B. In the radial direction of the air outlet channel 101, the radial dimension of the air outlet 101b is smaller than the radial dimension of the air inlet 101a. Thus, by setting the radial dimension of the air outlet 101b to be smaller than the radial dimension of the air inlet 101a, that is, reducing the radial dimension of the air outlet 101b of the air outlet channel 101, the airflow velocity when entering the air outlet 101b will increase. The moderate change in airflow velocity helps to reduce the noise generated by the rapid change in airflow, thereby achieving noise reduction.

[0040] Please refer to Figures 6 to 8 As shown, in one embodiment, the air outlet channel 101 has opposing inner walls 1012 and 1013 on both sides. At least one of the inner walls 1012 and 1013 extends in a curved shape that is recessed towards the outside of the air outlet channel 101, so that in the air outlet direction, the radial dimension at the middle position of the air outlet channel 101 is greater than the radial dimensions of the air inlet 101a and the air outlet 101b. When the airflow enters the air outlet channel 101 through the air inlet 101a, the larger radial dimension of the air inlet 101a can effectively slow down the airflow speed, reduce the friction between the airflow and the air duct, and reduce the noise caused by the wind speed difference.

[0041] The nozzle accessory 100 of this utility model sets the radial dimension of the middle position of the air outlet channel 101 to be greater than the radial dimensions of the air inlet 101a and the air outlet 101b, so that the air outlet channel 101 as a whole presents a fish belly shape. By changing the direction of airflow through the fish belly shape, the airflow is contracted and gathered, making the airflow smoother, reducing noise and reducing the loss of airflow velocity.

[0042] In one embodiment, both inner walls 1012 and 1013 extend in a curved shape, recessed towards the outer side of the air outlet duct 101. This outwardly concave configuration of both inner walls 1012 and 1013 further reduces noise and flow rate loss. In other embodiments, only one of the inner walls 1012 and 1013 may be configured as a curved shape recessed towards the outer side of the air outlet duct 101, resulting in a larger radial dimension at the center of the air outlet duct.

[0043] At least one rib 31 is provided in the air outlet channel 101. The rib 31 extends radially between the inner walls 1012 and 1013 on both sides and connects to the inner walls 1012 and 1013. By providing the rib 31 in the air outlet channel 101, the flow path of the airflow is changed, reducing the formation of vortices. Furthermore, the air outlet channel 101 is provided with a plurality of ribs 31 spaced apart in the circumferential direction, and the width of some of the ribs 31 is different from the width of the other ribs 31. Thus, this utility model disrupts the circulating vortices in the air outlet channel 101 by providing ribs 31 of different widths in the air outlet channel 101. The ribs 31 of different widths change the flow path of the airflow, disrupting the area that might originally generate vortices, reducing the formation of vortices, thereby effectively reducing the irregularity of the airflow and the occurrence of related noise sources, and reducing the noise during air outlet.

[0044] Some of the ribs 31 are wider than the others, and the number of wider ribs 31 is less than the number of other ribs 31. Furthermore, the wider ribs 31 are arranged adjacent to each other. Thus, by widening some of the ribs 31 and arranging them in a smaller, more concentrated manner within the air outlet duct 101, the ribs 31 of different widths can generate varying degrees of resistance and disturbance in the airflow, adjusting the airflow velocity distribution. This results in a more stable and uniform airflow, reducing noise and vibration caused by airflow instability.

[0045] Specifically, such as Figure 2 As shown, the ribs 31 are first ribs 311 and the other ribs are second ribs 312. The width of the first rib 311 in the circumferential direction of the air outlet channel 101 is greater than the width of the second rib 312 in the same circumferential direction, and the number of first ribs 311 is less than the number of second ribs 312. The first ribs 311 are arranged adjacent to each other in one area of ​​the air outlet channel 101, and the second ribs 312 are arranged adjacent to each other in the remaining area of ​​the air outlet channel 101. The presence of the ribs 31 constrains and guides the airflow in the air outlet channel, thereby reducing the degree of airflow turbulence and improving the stability of the airflow.

[0046] Please refer to Figure 1 , Figures 3 to 7As shown, the nozzle accessory 100 has a base with an annular first inner shell 32. The air outlet channel 101 is formed in an annular shape on the outside of the first inner shell 32, and the air outlet end of the first inner shell 32 is curved. In this way, by designing the air outlet end of the first inner shell 32 as curved, the effective opening area of ​​the air outlet end is increased, thereby providing a larger airflow under the same pressure. Furthermore, the curved air outlet end can effectively disperse the airflow, reduce the rapid acceleration of the airflow when it is venting, thereby reducing the airflow speed and avoiding the adverse effects of increased noise or airflow impact that may be caused by excessively fast airflow speed. The gentle airflow helps to improve comfort.

[0047] Please refer to Figure 4 and Figures 6 to 8 As shown, the nozzle accessory 100 also includes a first magnetic member 40 housed within the base. The first magnetic member 40 is capable of attracting the hair dryer body. The base includes a lower cover 10, an intermediate housing 20 located inside the lower cover 10, and an air outlet ring 30. The first inner housing 32 is formed in the air outlet ring 30. The air outlet channel 101 is formed between the intermediate housing 20 and the first inner housing 32. The first magnetic member 40 is sandwiched within the space formed by the lower cover 10, the intermediate housing 20, and the air outlet ring 30.

[0048] The nozzle accessory 100 of this utility model houses the first magnetic member 40 within the enclosed space formed on the base, so as to achieve quick assembly and disassembly with the hair dryer body through the first magnetic member 40, and the installation and positioning of the first magnetic member 40 is relatively simple and convenient; at the same time, placing the first magnetic member 40 within the enclosed space formed by the base can also avoid the problem of the first magnetic member 40 being exposed to the outside and getting contaminated with impurities, thereby affecting the magnetic attraction force.

[0049] The base has a mounting cavity 240 open towards the air outlet 100B. The nozzle accessory 100 further includes a fragrance component installed within the mounting cavity 240, the fragrance component being located radially outside the air outlet channel 101. Thus, the nozzle accessory 100 of this invention has a fragrance component positioned outside its air outlet channel 101. Negative pressure is used to draw fragrance from the fragrance component, effectively guiding the fragrance into the air outlet channel 101, ensuring effective diffusion of the fragrance in the airflow and ensuring its uniform diffusion to the target area, thereby enhancing the user experience.

[0050] Specifically, in some embodiments, the fragrance assembly includes a fragrance carrier 60 housed within the mounting cavity 240 and a top cover 50 assembled on the base and covering the mounting cavity 240. A drainage channel 102 for fragrance gas to flow out is formed between the top cover 50 and the intermediate shell 20. In this way, negative pressure drainage of the fragrance is achieved through the drainage channel 102 formed between the top cover 50 and the intermediate shell 20, preventing the fragrance from evaporating too quickly.

[0051] like Figures 6 to 8 As shown, the fragrance assembly also includes a second magnetic member 70 fixed to the upper cover 50. The second magnetic member 70 attracts the first magnetic member 40 to fix the upper cover 50 to the base. Thus, the first magnetic member 40 can attract both the hair dryer body and the second magnetic member 70 of the fragrance assembly. Simultaneously, the attraction between the first magnetic member 40 and the second magnetic member 70 enables quick assembly and disassembly of the upper cover 50 from the base. Users can easily replace the fragrance carrier 60 according to their needs, making the replacement of the fragrance carrier 60 more convenient and quick.

[0052] In some embodiments of this utility model, the second magnetic suction member 70 is provided with a flange 71 that protrudes outward along the radial direction of the nozzle attachment 100, and the upper cover 50 is provided with a stop portion 51 that stops behind the flange 71, thereby stopping and positioning the second magnetic suction member 70 to form a whole; in other embodiments, the second magnetic suction member 70 may also be directly embedded in the upper cover 50 to form a whole.

[0053] Please refer to Figure 6 and Figure 7 As shown, the flow channel 102 has a first end away from the fragrance carrier 60 and a second end close to the fragrance carrier 60. The distance from the first end to the central axis of the nozzle attachment 100 is less than the distance from the second end to the central axis. In this invention, the nozzle attachment 100 effectively draws the fragrance gas outward through negative pressure by setting the outlet end of the fragrance gas closer to the air outlet channel 101, thereby reducing the natural evaporation of the fragrance.

[0054] Please refer to Figures 4 to 8As shown, the air outlet ring 30 also has a second inner shell 34 located outside the first inner shell 32 and a latching arm 35 extending downward and inward from the top of the second inner shell 34. The intermediate shell 20 has a first latching portion 201 protruding outward. When the intermediate shell 20 is assembled into the lower cover 10 from top to bottom, the first latching portion 201 extends downward past the latching arm 35 and locks with its free end. In this utility model, the nozzle accessory 100 is latched to the first latching portion 201 of the intermediate shell 20 by the latching arm 35 provided on the air outlet ring 30, thereby realizing convenient assembly and stable connection between the intermediate shell 20 and the air outlet ring 30.

[0055] The intermediate housing 20 also has a second latching portion 202 that protrudes outward in the radial direction. The second latching portion 202 and the first latching portion 201 are staggered in the vertical direction. The lower cover 10 has an upwardly protruding arm 13, the free end of which is locked to the second latching portion 202. Thus, by locking the second latching portion 202 on the intermediate housing 20 with the protruding arm 13 on the lower cover 10, the intermediate housing 20 and the lower cover 10 are assembled and fixed near the air outlet 101. Simultaneously, by staggering the first latching portion 201 and the second latching portion 202 in the vertical direction, different parts of the intermediate housing 20 in the vertical direction are used to fix it to the lower cover 10 and the air outlet ring 30 respectively, making the connection and fixation between the intermediate housing 20, the lower cover 10, and the air outlet ring 30 more stable and reliable, and preventing mutual interference during assembly.

[0056] Please refer to Figure 4 and Figures 6 to 8 As shown, the lower cover 10 includes a base plate 11 and a peripheral wall 12 erected on the base plate 11. The inner wall surface of the peripheral wall 12 is provided with a third snap-fit ​​portion 121, and the intermediate housing 20 is provided with a locking groove 203 that cooperates with the third snap-fit ​​portion 121. In this utility model, the nozzle accessory 100 achieves the assembly and fixation between the intermediate housing 20 and the peripheral wall 12 of the lower cover 10 through the cooperation between the third snap-fit ​​portion 121 provided on the lower cover and the locking groove 203 provided on the outer side of the intermediate housing 20.

[0057] Specifically, the intermediate housing 20 includes a first wall portion 21 and a second wall portion 23 spaced apart in the radial direction. The first wall portion 21 is located inside the second wall portion 23 in the radial direction, and the second latching portion 202 is disposed on a side of the first wall portion 21 opposite to the air outlet duct 101. The first wall portion 21 is located between the first inner shell 32 and the second inner shell 34 in the radial direction, and the rib 31 connects the first inner shell 32 and the second inner shell 34 in the radial direction.

[0058] The first wall portion 21 is provided with a plurality of slots 212 recessed upward from its bottom end, and the ribs 31 are inserted into and confined within the corresponding slots 212. In some embodiments, one of the two inner walls 1012 and 1013 is the outer surface of the first inner shell 32, and the other of the two inner walls 1012 and 1013 is the inner surface of the intermediate shell 20.

[0059] In this invention, the first wall portion 21 of the intermediate housing 20 extends between the first inner housing 32 and the second inner housing 34, and the alignment and circumferential connection between the intermediate housing 20 and the air outlet ring 30 are achieved by inserting the ribs 31 into the corresponding slots 212.

[0060] The locking groove 203 is disposed on the outside of the second wall portion 23, the first wall portion 21 extends upward beyond the second wall portion 23, and the intermediate housing 20 also has a top wall 24 that connects the top end of the second wall portion 23 to the first wall portion 21, and the top wall 24 is provided with the mounting cavity 240 that is open upward.

[0061] In addition, this utility model also provides a hair dryer, which includes a hair dryer body (not shown) and the aforementioned nozzle accessory 100. The nozzle accessory 100 is detachably connected to the air outlet end of the hair dryer body via the mounting end 100A. Thus, by installing the nozzle accessory 100 at the air outlet end of the hair dryer body, when the high-speed airflow blown out by the hair dryer body passes through the nozzle accessory 100, the nozzle accessory optimizes the airflow through its curved air outlet end, allowing the airflow to flow out more smoothly. This helps reduce abrupt changes and turbulence in the airflow, avoiding wind speed loss that may occur with traditional air outlets, thereby improving the airflow efficiency of the fan and reducing energy waste.

[0062] In some embodiments of this utility model, the nozzle accessory 100 is connected to the hair dryer body via the first magnetic member 40; in other embodiments, the nozzle accessory 100 can also be installed on the air outlet end of the hair dryer body by means of threaded connection, snap-fit ​​connection or magnetic connection.

[0063] In summary, the nozzle accessory 100 and the blower of this utility model, by setting the radial dimension of the air outlet 101b of the nozzle accessory 100 to be smaller than the radial dimension of the air inlet 101a, will increase the airflow velocity when entering the air outlet 101b. The moderate change in airflow velocity helps to reduce the noise generated by the rapid change in airflow, thereby reducing noise pollution.

[0064] It should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This way of describing the specification is only for clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

[0065] The above embodiments are only used to illustrate the technical solutions of this application and are not intended to limit it. Although this application has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solutions of this application without departing from the spirit and scope of the technical solutions of this application.

Claims

1. A tuyere attachment having oppositely arranged mounting and air outlet ends, an air passage extending through the mounting and air outlet ends, the air passage being annularly arranged and having an air inlet at the mounting end and an air outlet at the air outlet end, characterised in that, In the radial direction of the air outlet channel, the radial dimension of the air outlet is smaller than the radial dimension of the air inlet.

2. A tuyere attachment according to claim 1, characterised in that At least one of the two side inner walls of the air outlet channel is in a curved extension recessed to the outside of the air outlet channel, so that in the air outlet direction, the radial dimension at the middle position of the air outlet channel is greater than the radial dimension of the air inlet and the air outlet.

3. A tuyere attachment according to claim 2, characterised in that Both of the two side inner walls are in a curved extension recessed to the outside of the air outlet channel.

4. The tuyere attachment of claim 2, wherein, At least one rib is arranged in the air outlet channel, the rib extends in the radial direction between the two side inner walls and connects the two side inner walls.

5. A tuyere attachment according to claim 4, characterised in that The air outlet channel is provided with a plurality of ribs arranged at intervals in the circumferential direction, the width of part of the ribs is greater than that of the other ribs, the number of the ribs with greater width is less than that of the other ribs, and the ribs with greater width are arranged adjacently.

6. The tuyere attachment of claim 1, wherein, The air nozzle accessory has a base formed with an annular first inner shell, the air outlet channel is annularly formed on the outside of the first inner shell, and the air outlet end of the first inner shell is arranged in a curve.

7. A tuyere attachment according to claim 6, characterised in that The air nozzle accessory further comprises a first magnetic attraction member accommodated in the base, the base comprises a lower cover, an intermediate shell on the inner side of the lower cover, and an air outlet ring, the first inner shell is formed in the air outlet ring, the air outlet channel is formed between the intermediate shell and the first inner shell, and the first magnetic attraction member is clamped in the space enclosed by the lower cover, the intermediate shell and the air outlet ring.

8. A tuyere attachment according to claim 7, characterised in that The base has a mounting cavity open to the air outlet end, and the air nozzle accessory further comprises a fragrance assembly arranged in the mounting cavity, the fragrance assembly is located outside the air outlet channel in the radial direction.

9. A tuyere attachment according to claim 8, characterised in that, The fragrance assembly comprises a fragrance carrier accommodated in the mounting cavity and an upper cover assembled to the base and covering the mounting cavity, and a drainage channel for discharging fragrance gas is formed between the upper cover and the intermediate shell.

10. A tuyere attachment according to claim 9, characterised in that The fragrance assembly further comprises a second magnetic attraction member fixed to the upper cover, and the second magnetic attraction member is attracted to the first magnetic attraction member to fix the upper cover to the base.

11. The windbox add-on of claim 9, wherein, The drainage channel has a first end away from the fragrance carrier and a second end close to the fragrance carrier, and the distance from the first end to the central axis of the air nozzle accessory is less than the distance from the second end to the central axis.

12. The windbox add-on of claim 7, wherein, The air outlet ring further has a second inner shell on the outside of the first inner shell and a clamping arm extending downward and inward from the top end of the second inner shell, the intermediate shell has a first clamping part protruding outward, and when the intermediate shell is assembled downward in the base, the first clamping part passes downward over the clamping arm and is locked with the free end of the clamping arm.

13. The windbox add-on of claim 12, wherein, The intermediate shell further has a second clamping part protruding outward in the radial direction, the second clamping part and the first clamping part are arranged staggered in the up-down direction, the lower cover has a protruding arm protruding upward, and the free end of the protruding arm is locked with the second clamping part.

14. The windbox add-on of claim 13, wherein, The lower cover comprises a base plate and a peripheral wall standing on the base plate, the inner wall surface of the peripheral wall is provided with a third clamping part, and the intermediate shell is provided with a locking groove matched with the third clamping part.

15. A hair dryer, characterized by The hair dryer body and the air nozzle accessory according to any one of claims 1 to 14 are detachably connected through the mounting end of the air nozzle accessory to the air outlet end of the hair dryer body.

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