Fan locking mechanism, air duct assembly and electric hair drier

Abstract

The utility model relates to a fan locking mechanism, an air duct assembly and an electric hair drier, and belongs to the technical field of electric hair driers. The cover body assembly is arranged on the limiting assembly and covers the opening, the cover body assembly can at least form a first position and a second position relative to the limiting assembly, when the cover body assembly is located at the first position, the cover body assembly and the limiting assembly are locked, and when the cover body assembly is located at the second position, the cover body assembly and the limiting assembly are unlocked; the limiting assembly is provided with a mounting cavity or the cover body assembly and the limiting assembly enclose to form the mounting cavity communicated with the opening; and the fan assembly is arranged on the limiting assembly and located in the mounting cavity. According to the fan locking mechanism, the cover body assembly and the limiting assembly can be locked or unlocked to complete mounting and dismounting of the fan assembly, the mounting and dismounting mode of the fan assembly is simple, the assembling process of the fan assembly is greatly simplified, and the assembling efficiency is high.

Description

Technical Field

[0001] The utility model relates to the technical field of hair dryers, in particular to a fan locking mechanism, an air duct assembly and a hair dryer. Background Art

[0002] The fan is an important component for a hair dryer to realize the functions of air supply and air outlet. The fan can form a negative pressure to suck external air from the air inlet of the hair dryer and form an accelerated air flow to output from the air outlet of the hair dryer. However, in the assembly process of the existing hair dryer, additional connecting parts such as screws are required. Not only is the assembly efficiency of the fan relatively low, but also it is easy to have inaccurate assembly holes, resulting in an increase in the defective rate of the hair dryer and an increase in consumables. Summary of the Utility Model

[0003] Based on this, in view of the problem of relatively low assembly efficiency of the fan, it is necessary to provide a fan locking mechanism, an air duct assembly and a hair dryer.

[0004] A fan locking mechanism includes: a limiting component, with an opening provided on at least one side of the limiting component; a cover body component, which is arranged on the limiting component and covers the opening. The cover body component can form at least a first position and a second position relative to the limiting component. When the cover body component is in the first position, the cover body component and the limiting component are locked. When the cover body component is in the second position, the cover body component and the limiting component are unlocked. The limiting component is provided with an installation cavity, or the cover body component and the limiting component enclose to form an installation cavity, and the installation cavity is communicated with the opening; a fan component, which is arranged on the limiting component and / or the cover body component and the fan component is located in the installation cavity.

[0005] In the first aspect of this application, a fan locking mechanism is disclosed. By arranging the fan component in the installation cavity, rapid positioning and installation of the fan component can be achieved. With an opening provided on one side of the limiting component, the fan component can be placed into the installation cavity from the opening for assembly. Moreover, the setting of the opening enables the negative pressure generated by the fan component located in the installation cavity to convey the air flow. By covering the opening on one side of the limiting component with the cover body component, it is avoided that the fan component located in the installation cavity falls out from the opening, ensuring the stability of the use of the fan component. By being able to lock or unlock the cover body component and the limiting component to complete the installation and disassembly of the fan component, the loading and unloading method of the fan component is relatively simple, greatly simplifying the assembly process of the fan component, enhancing the flexibility of the assembly of the fan component, and having high assembly efficiency.

[0006] In one embodiment, one of the limiting component and the cover body component is provided with a first connecting buckle, and the other of the limiting component and the cover body component is provided with a clamping hole. When the cover body component is in the first position, the first connecting buckle is snapped into the clamping hole, and when the cover body component is in the second position, the first connecting buckle and the clamping hole are unlocked. The first connecting buckle can be snapped into the clamping hole, so that the limiting component can be stably connected to the cover body component, and the cover body component can limit the movement of the fan component to prevent the fan component from falling out of the opening. The installation and disassembly of the fan component are completed by locking or unlocking the first connecting buckle and the clamping hole, so that the disassembly and assembly method of the fan component is relatively simple and highly flexible.

[0007] In one embodiment, the limiting component includes a limiting shell part and a supporting shell part. The limiting shell part can be clamped with the cover body component. The limiting shell part and the cover body component enclose to form the installation cavity. The supporting shell part is arranged on the limiting shell part and surrounds the limiting shell part. The arrangement of the limiting shell part enables the fan component to be quickly installed in the limiting shell part. Moreover, the limiting shell part can protect the fan component. Since the supporting shell part surrounds the limiting shell part, the overall structural strength of the limiting component is better, the quality of the limiting component is better, and it is more durable. Moreover, the manufacturing difficulty is small and the practicability is good.

[0008] In one embodiment, the limiting shell part includes a limiting shell body, a first rib and a first connecting buckle. Openings are provided on both sides of the limiting shell body. The first rib and the first connecting buckle are both arranged on the limiting shell body. The first rib is located at the opening on one side of the limiting shell body, and the first connecting buckle is arranged adjacent to the opening on the other side of the limiting shell body. The first connecting buckle is used for clamping with the cover body component. Since openings are provided on both sides of the limiting shell body, the fan component can be placed into the installation cavity from the opening on one side during assembly. The first ribs arranged on both sides of the limiting shell body and the cover body component cooperate to limit the movement of the fan component, and the operation of the fan component is more stable. Since the first connecting buckle is arranged adjacent to the opening, it is convenient for the cover body component to cover the opening.

[0009] In one embodiment, the support housing member includes a connecting arc plate and a support plate. The connecting arc plate is disposed on the limiting housing member and surrounds the limiting housing member. The support plate is disposed on the connecting arc plate and is located on the side of the connecting arc plate away from the limiting housing member. By connecting the connecting arc plate to the limiting housing member and the support plate respectively, the overall structural strength of the limiting assembly is better, and the stress resistance ability is strong, avoiding deformation of the limiting assembly under the action of load force. Since the support plate is located on the side of the connecting arc plate away from the limiting housing member, the support plate can be used to connect with other components to assemble the limiting assembly, and the assembly of the limiting assembly is convenient and fast.

[0010] In one embodiment, the cover assembly includes a second rib, a cover body and a third rib. The cover body is provided with a card hole, and the limiting assembly is provided with a first connection buckle adapted to the card hole. The second rib and the third rib are both disposed on the cover body, and the second rib and the third rib are respectively located on both sides of the cover body. The second rib and the limiting assembly enclose to form the installation cavity. By providing the card hole on the cover body, the cover assembly can be clamped on the limiting assembly. Since the second rib and the third rib are respectively located on both sides of the cover body, and the extending directions of the second rib and the third rib are opposite, the second rib extends towards the inside of the opening, and the second rib can limit the movement of the fan assembly, thereby avoiding the fan assembly in the installation cavity from falling out from the opening.

[0011] In one embodiment, the fan assembly includes a protection housing, a fan body and an electric control component. The protection housing is disposed on the limiting assembly and is located in the installation cavity. The fan body is disposed on the protection housing and is located inside the protection housing. The electric control component is disposed on the fan body and is electrically connected to the fan body. Since the fan body is located inside the protection housing, the protection housing can be used to protect the fan body, avoiding damage to the fan body during the installation and disassembly process, so that the service life of the fan assembly is longer. By providing the electric control component to control the air flow conveyed by the fan body, the automation degree of the air flow conveyed by the fan body is high.

[0012] An air duct assembly, comprising: an air duct outer shell; an air inlet inner shell disposed on the air duct outer shell, the air inlet inner shell being located at one end of the air duct outer shell, and the air inlet inner shell being provided with an air inlet; a wind guiding inner shell disposed on the air duct outer shell, the wind guiding inner shell being located at the other end of the air duct outer shell, and the wind guiding inner shell being provided with an air outlet; the above-mentioned fan locking mechanism disposed on the air inlet inner shell and / or the wind guiding inner shell, the fan locking mechanism being located between the air inlet inner shell and the wind guiding inner shell, the fan assembly being respectively communicated with the air inlet and the air outlet, and the fan assembly being configured to generate negative pressure to convey the air flow at the air inlet to the air outlet.

[0013] In a second aspect of the present application, an air duct assembly is disclosed. By having the air inlet inner shell and the wind guiding inner shell located at the two ends of the air duct outer shell respectively, the overall air duct assembly is coordinated and more aesthetically pleasing. By having the fan assembly communicated with the air inlet and the air outlet respectively, the fan assembly can convey the air flow at the air inlet to the air outlet, ensuring sufficient air flow supply. By having the fan locking mechanism located between the air inlet inner shell and the wind guiding inner shell, the distribution is reasonable and it is convenient to convey the air flow.

[0014] In one embodiment, a second connection buckle is formed on the fan locking mechanism. The number of the second connection buckles is multiple, and the multiple second connection buckles are sequentially arranged along the circumferential direction of the fan locking mechanism. The second connection buckle is snap-connected to the wind guiding inner shell. By snap-connecting the second connection buckle to the wind guiding inner shell, the assembly of the fan locking mechanism is simple and fast, and the fan locking mechanism can be assembled quickly. Moreover, the assembled stability performance is good, avoiding the fan locking mechanism from shifting or even falling off during the working process. By sequentially arranging the multiple second connection buckles along the circumferential direction of the fan locking mechanism, the assembly effect of the fan locking mechanism is better.

[0015] A hair dryer, comprising: a handle assembly; the above-mentioned air duct assembly, the air duct assembly being disposed on the handle assembly.

[0016] In a third aspect of the present application, a hair dryer is disclosed. By disposing the air duct assembly on the handle assembly, the handle assembly can stably support the air duct assembly, facilitating the user to hold the hair dryer during use. Moreover, the arrangement of the handle assembly can assemble other components of the hair dryer, making more reasonable use of the space of the hair dryer, so that the appearance quality of the hair dryer is better. Description of the Drawings

[0017] Figure 1 Is the first three-dimensional view of the fan locking mechanism;

[0018] Figure 2 Is the second three-dimensional view of the fan locking mechanism;

[0019] Figure 3 The first cross-sectional view of the fan locking mechanism;

[0020] Figure 4 The exploded view of the fan locking mechanism;

[0021] Figure 5 The second cross-sectional view of the fan locking mechanism;

[0022] Figure 6 The three-dimensional view of the air duct assembly;

[0023] Figure 7 The cross-sectional view of the air duct assembly;

[0024] Figure 8 The three-dimensional view of the hair dryer;

[0025] Figure 9 The cross-sectional view of the hair dryer.

[0026] Among them, the corresponding relationship between the reference numerals and the component names is as follows:

[0027] 1. Limit component, 11. Limit housing part, 111. Limit housing body, 112. First rib, 113. First connection buckle, 12. Support housing part, 121. Connecting arc plate, 122. Support plate, 101. Opening, 102. Installation cavity;

[0028] 2. Cover body component, 21. Second rib, 22. Cover body body, 23. Third rib, 201. Card hole;

[0029] 3. Fan component, 31. Protection housing, 32. Fan body, 33. Electric control component;

[0030] 4. Air duct housing;

[0031] 5. Inlet air inner shell, 501. Inlet air port;

[0032] 6. Air guide inner shell, 601. Outlet air port;

[0033] 7. Fan locking mechanism, 71. Second connection buckle;

[0034] 100. Handle assembly;

[0035] 200. Air duct assembly. Specific embodiments

[0036] In order to more clearly understand the above-mentioned objects, features and advantages of the present invention, the present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments. It should be noted that, without conflict, the embodiments of the present application and the features in the embodiments can be combined with each other.

[0037] In the following description, numerous specific details are set forth to provide a thorough understanding of the present utility model. However, the present utility model may also be implemented in other ways different from those described herein. Therefore, the scope of protection of the present utility model is not limited by the specific embodiments disclosed below.

[0038] Embodiment 1

[0039] As Figures 1-5 shown, this embodiment discloses a fan locking mechanism, including: a limiting component 1, with an opening 101 provided on at least one side of the limiting component 1; a cover component 2, which is arranged on the limiting component 1 and covers the opening 101. The cover component 2 can form at least a first position and a second position relative to the limiting component 1. When the cover component 2 is in the first position, the cover component 2 and the limiting component 1 are locked. When the cover component 2 is in the second position, the cover component 2 and the limiting component 1 are unlocked. The limiting component 1 is provided with an installation cavity 102 or the cover component 2 and the limiting component 1 enclose to form an installation cavity 102, and the installation cavity 102 communicates with the opening 101; a fan component 3, which is arranged on the limiting component 1 and / or the cover component 2 and the fan component 3 is located in the installation cavity 102.

[0040] The first aspect of the present application discloses a fan locking mechanism. By having the fan component 3 located in the installation cavity 102, rapid positioning and installation of the fan component 3 can be achieved. With an opening 101 provided on one side of the limiting component 1, the fan component 3 can be placed into the installation cavity 102 through the opening 101 for assembly. Moreover, the setting of the opening 101 enables the negative pressure generated by the fan component 3 located in the installation cavity 102 to convey the air flow. By covering the opening 101 on one side of the limiting component 1 with the cover component 2, it is prevented that the fan component 3 located in the installation cavity 102 falls out through the opening 101, ensuring the stability of the use of the fan component 3. By being able to lock or unlock the cover component 2 and the limiting component 1 to complete the installation and disassembly of the fan component 3, the loading and unloading method of the fan component 3 is relatively simple, greatly simplifying the assembly process of the fan component 3, enhancing the flexibility of the assembly of the fan component 3, and having a high assembly efficiency.

[0041] As Figure 3As shown, in addition to the features of the above embodiments, this embodiment further defines that: one of the limiting component 1 and the cover component 2 is provided with a first connecting buckle 113, and the other of the limiting component 1 and the cover component 2 is provided with a clamping hole 201. When the cover component 2 is in the first position, the first connecting buckle 113 is snapped into the clamping hole 201, and when the cover component 2 is in the second position, the first connecting buckle 113 and the clamping hole 201 are unlocked. Through the first connecting buckle 113 being able to be snapped into the clamping hole 201, the limiting component 1 can be stably connected to the cover component 2, and the cover component 2 can limit the movement of the fan component 3, preventing the fan component 3 from falling out from the opening 101. The installation and disassembly of the fan component 3 are completed by locking or unlocking the first connecting buckle 113 and the clamping hole 201, so the disassembly and assembly method of the fan component 3 is relatively simple and highly flexible.

[0042] As Figure 5 shown, in addition to the features of the above embodiments, this embodiment further defines that: the limiting component 1 includes a limiting shell part 11 and a supporting shell part 12. The limiting shell part 11 can be clamped with the cover component 2. The limiting shell part 11 and the cover component 2 enclose to form the installation cavity 102. The supporting shell part 12 is arranged on the limiting shell part 11, and the supporting shell part 12 surrounds the limiting shell part 11. Through the arrangement of the limiting shell part 11, the fan component 3 can be quickly installed in the limiting shell part 11. Moreover, the limiting shell part 11 can protect the fan component 3. Through the supporting shell part 12 surrounding the limiting shell part 11, the overall structural strength of the limiting component 1 is better, the quality of the limiting component 1 is better, and it is more durable. Moreover, the manufacturing difficulty is small and the practicability is good.

[0043] As Figure 3 shown, in addition to the features of the above embodiments, this embodiment further defines that: the limiting shell part 11 includes a limiting shell body 111, a first rib 112 and a first connecting buckle 113. Openings 101 are provided on both sides of the limiting shell body 111. The first rib 112 and the first connecting buckle 113 are both arranged on the limiting shell body 111. The first rib 112 is located at one side opening 101 of the limiting shell body 111, and the first connecting buckle 113 is arranged adjacent to the opening 101 on the other side of the limiting shell body 111. The first connecting buckle 113 is used for clamping with the cover component 2. Through openings 101 being provided on both sides of the limiting shell body 111, the fan component 3 can be placed into the installation cavity 102 from one of the openings 101 during assembly. The first ribs 112 arranged on both sides of the limiting shell body 111 cooperate with the cover component 2 to limit the movement of the fan component 3, and the operation of the fan component 3 is more stable. Through the first connecting buckle 113 being arranged adjacent to the opening 101, it is convenient for the cover component 2 to cover the opening 101.

[0044] As Figure 5 shown, in addition to the features of the above embodiments, this embodiment further defines that the support housing member 12 includes a connecting arc plate 121 and a support plate 122. The connecting arc plate 121 is disposed on the limiting housing member 11, the connecting arc plate 121 surrounds the limiting housing member 11, and the support plate 122 is disposed on the connecting arc plate 121 and the support plate 122 is located on a side of the connecting arc plate 121 away from the limiting housing member 11. By connecting the connecting arc plate 121 to the limiting housing member 11 and the support plate 122 respectively, the overall structural strength of the limiting assembly 1 is better, the stress resistance ability is strong, and the limiting assembly 1 is prevented from deforming under the action of load force. Since the support plate 122 is located on a side of the connecting arc plate 121 away from the limiting housing member 11, the support plate 122 can be used to connect with other components to assemble the limiting assembly 1, and the assembly of the limiting assembly 1 is convenient and fast.

[0045] As Figure 5 shown, in addition to the features of the above embodiments, this embodiment further defines that the cover assembly 2 includes a second rib 21, a cover body 22, and a third rib 23. The cover body 22 is provided with a card hole 201, and the limiting assembly 1 is provided with a first connection buckle 113 adapted to the card hole 201. The second rib 21 and the third rib 23 are both disposed on the cover body 22 and the second rib 21 and the third rib 23 are respectively located on two sides of the cover body 22. The second rib 21 and the limiting assembly 1 enclose to form the installation cavity 102. By providing the card hole 201 on the cover body 22, the cover assembly 2 can be clamped on the limiting assembly 1. Since the second rib 21 and the third rib 23 are respectively located on two sides of the cover body 22 and the extending directions of the second rib 21 and the third rib 23 are opposite, the second rib 21 extends towards the inside of the opening 101, and the second rib 21 can limit the movement of the fan assembly 3, so that the fan assembly 3 in the installation cavity 102 can be prevented from falling out from the opening 101.

[0046] As Figure 5As shown, in addition to the features of the above embodiments, this embodiment further defines that: the fan assembly 3 includes a protective housing 31, a fan body 32, and an electric control component 33. The protective housing 31 is disposed on the limiting assembly 1 and is located within the installation cavity 102. The fan body 32 is disposed on the protective housing 31 and is located inside the protective housing 31. The electric control component 33 is disposed on the fan body 32 and is electrically connected to the fan body 32. Since the fan body 32 is located inside the protective housing 31, the protective housing 31 can be used to protect the fan body 32, preventing the fan body 32 from being damaged during installation and disassembly, so that the service life of the fan assembly 3 is longer. The electric control component 33 is provided to control the air flow delivered by the fan body 32, and the degree of automation of the air flow delivered by the fan body 32 is high.

[0047] Embodiment 2

[0048] As Figures 6-7 As shown, this embodiment discloses an air duct assembly, including: an air duct housing 4; an air inlet inner housing 5, which is disposed on the air duct housing 4 and is located at one end of the air duct housing 4. The air inlet inner housing 5 is provided with an air inlet 501; a wind guiding inner housing 6, which is disposed on the air duct housing 4 and is located at the other end of the air duct housing 4. The wind guiding inner housing 6 is provided with an air outlet 601; the above-mentioned fan locking mechanism 7, which is disposed on the air inlet inner housing 5 and / or the wind guiding inner housing 6 and is located between the air inlet inner housing 5 and the wind guiding inner housing 6. The fan assembly 3 is respectively in communication with the air inlet 501 and the air outlet 601, and the fan assembly 3 is used to generate negative pressure to deliver the air flow at the air inlet 501 to the air outlet 601.

[0049] The second aspect of this application discloses an air duct assembly. Since the air inlet inner housing 5 and the wind guiding inner housing 6 are respectively located at both ends of the air duct housing 4, the overall air duct assembly is coordinated and more beautiful. Since the fan assembly 3 is respectively in communication with the air inlet 501 and the air outlet 601, the fan assembly 3 can deliver the air flow at the air inlet 501 to the air outlet 601, ensuring sufficient air flow supply. Since the fan locking mechanism 7 is located between the air inlet inner housing 5 and the wind guiding inner housing 6, the distribution is reasonable and it is convenient to deliver the air flow.

[0050] As Figure 7As shown, in addition to the features of the above embodiments, this embodiment further defines that: a second connection buckle 71 is formed on the fan locking mechanism 7, and the number of the second connection buckles 71 is multiple. The multiple second connection buckles 71 are arranged in sequence along the circumferential direction of the fan locking mechanism 7, and the second connection buckle 71 is clamped with the inner air guide shell 6. By clamping the second connection buckle 71 with the inner air guide shell 6, the assembly of the fan locking mechanism 7 is simple and fast, and the fan locking mechanism 7 can be assembled quickly. Moreover, the assembled stability is good, avoiding the fan locking mechanism 7 from shifting or even falling off during the working process. By arranging the multiple second connection buckles 71 in sequence along the circumferential direction of the fan locking mechanism 7, the assembly effect of the fan locking mechanism 7 is better.

[0051] Embodiment 3

[0052] As Figures 8-9 shown, this embodiment discloses a hair dryer, including: a handle assembly 100; the above-mentioned air duct assembly 200, and the air duct assembly 200 is arranged on the handle assembly 100.

[0053] The third aspect of this application discloses a hair dryer. By arranging the air duct assembly 200 on the handle assembly 100, the handle assembly 100 can stably support the air duct assembly 200, facilitating the user to hold the hair dryer during use. Moreover, the setting of the handle assembly 100 can assemble other components of the hair dryer, making more reasonable use of the space of the hair dryer, so that the appearance quality of the hair dryer is better.

[0054] The above embodiments only represent several implementation manners of the present invention. The description is relatively specific and detailed, but it should not be construed as a limitation on the scope of the utility model patent. It should be noted that for those of ordinary skill in the art, without departing from the concept of the present invention, several deformations and improvements can still be made, and these all belong to the protection scope of the present invention. Therefore, the protection scope of the utility model patent shall be subject to the appended claims.

Claims

1. A fan locking mechanism, characterized in that: include: A limiting component (1), wherein at least one side of the limiting component (1) is provided with an opening (101); A cover assembly (2), wherein the cover assembly (2) is arranged on the limiting assembly (1) and covers the opening (101); the cover assembly (2) can form at least a first position and a second position relative to the limiting assembly (1); when the cover assembly (2) is located at the first position, the cover assembly (2) and the limiting assembly (1) are locked; when the cover assembly (2) is located at the second position, the cover assembly (2) and the limiting assembly (1) are unlocked; the limiting assembly (1) is provided with an installation cavity (102) or the cover assembly (2) and the limiting assembly (1) are enclosed to form the installation cavity (102); the installation cavity (102) is in communication with the opening (101); A fan assembly (3), wherein the fan assembly (3) is arranged on the limiting assembly (1) and / or the cover assembly (2), and the fan assembly (3) is located in the installation cavity (102).

2. The fan locking mechanism according to claim 1, characterized in that: One of the limiting assembly (1) and the cover assembly (2) is provided with a first connecting buckle (113), and the other of the limiting assembly (1) and the cover assembly (2) is provided with a locking hole (201); when the cover assembly (2) is located at the first position, the first connecting buckle (113) is locked into the locking hole (201); when the cover assembly (2) is located at the second position, the first connecting buckle (113) and the locking hole (201) are unlocked.

3. The fan locking mechanism according to claim 1, characterized in that: The limiting assembly (1) comprises a limiting shell component (11) and a supporting shell component (12); the limiting shell component (11) can be snap-connected with the cover assembly (2); the limiting shell component (11) and the cover assembly (2) together form the installation cavity (102); the supporting shell component (12) is arranged on the limiting shell component (11); and the supporting shell component (12) is arranged around the limiting shell component (11).

4. The fan locking mechanism according to claim 3, characterized in that: The limiting shell component (11) comprises a limiting shell body (111), a first convex rib (112) and a first connecting buckle (113); openings (101) are provided on both sides of the limiting shell body (111); the first convex rib (112) and the first connecting buckle (113) are both arranged on the limiting shell body (111); the first convex rib (112) is located at the opening (101) on one side of the limiting shell body (111); the first connecting buckle (113) is arranged adjacent to the opening (101) on the other side of the limiting shell body (111); and the first connecting buckle (113) is used for being connected with the cover assembly (2).

5. The fan locking mechanism according to claim 3, characterized in that: The supporting shell (12) comprises a connecting arc plate (121) and a supporting plate (122); the connecting arc plate (121) is arranged on the limiting shell (11); the connecting arc plate (121) is arranged around the limiting shell (11); the supporting plate (122) is arranged on the connecting arc plate (121) and the supporting plate (122) is located on a side of the connecting arc plate (121) away from the limiting shell (11).

6. The fan locking mechanism according to claim 1, characterized in that: The cover body assembly (2) comprises a second convex rib (21), a cover body (22) and a third convex rib (23); the cover body (22) is provided with a clamping hole (201); the limiting assembly (1) is provided with a first connecting buckle (113) adapted to the clamping hole (201); the second convex rib (21) and the third convex rib (23) are both arranged on the cover body (22) and the second convex rib (21) and the third convex rib (23) are respectively located on two sides of the cover body (22); the second convex rib (21) and the limiting assembly (1) enclose the installation cavity (102).

7. The fan locking mechanism according to claim 1, characterized in that: The fan assembly (3) comprises a protective shell (31), a fan body (32) and an electrical control component (33); the protective shell (31) is arranged on the limit assembly (1) and is located in the installation cavity (102); the fan body (32) is arranged on the protective shell (31) and is located inside the protective shell (31); the electrical control component (33) is arranged on the fan body (32); and the electrical control component (33) is electrically connected to the fan body (32).

8. An air duct assembly, characterized in that: include: Air duct housing (4); An air inlet inner shell (5), the air inlet inner shell (5) being arranged on the air duct outer shell (4), the air inlet inner shell (5) being located at one end of the air duct outer shell (4), and the air inlet inner shell (5) being provided with an air inlet (501); An air guide inner shell (6), the air guide inner shell (6) being arranged on the air duct outer shell (4), the air guide inner shell (6) being located at the other end of the air duct outer shell (4), and the air guide inner shell (6) being provided with an air outlet (601); The fan locking mechanism (7) described in any one of claims 1 to 7, wherein the fan locking mechanism (7) is arranged on the air inlet inner shell (5) and / or the air guide inner shell (6), the fan locking mechanism (7) is located between the air inlet inner shell (5) and the air guide inner shell (6), the fan assembly (3) is respectively connected to the air inlet (501) and the air outlet (601), and the fan assembly (3) is used to generate negative pressure to transport the airflow of the air inlet (501) to the air outlet (601).

9. The air duct assembly according to claim 8, characterized in that: A second connection buckle (71) is formed on the fan locking mechanism (7), the number of the second connection buckles (71) is multiple, the multiple second connection buckles (71) are arranged in sequence along the circumference of the fan locking mechanism (7), and the second connection buckle (71) is snap-connected with the air guide inner shell (6).

10. A hair dryer, characterized in that: include: A handle assembly (100); The air duct assembly (200) according to any one of claims 8 to 9, wherein the air duct assembly (200) is arranged on the handle assembly (100).

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