Hair drier

Abstract

The utility model discloses a hair drier, which belongs to the technical field of household appliances, solves the problem that the change of the air outlet state is not obvious when gathered airflow is blown out, and adopts the technical scheme that the hair drier mainly comprises a machine head, the machine head is provided with an air inlet duct and an air outlet nozzle assembly, and the air outlet nozzle assembly comprises a base, an inner shell, an inner air outlet nozzle and an outer air outlet nozzle. The base is connected with the machine head, the inner shell is connected to the base, the inner air outlet nozzle is sleeved with the inner shell, the inner air outlet nozzle and the inner shell form a first air outlet channel, the outer air outlet nozzle is sleeved with the inner air outlet nozzle, the outer air outlet nozzle and the inner air outlet nozzle form a second air outlet channel, the first air outlet channel and the second air outlet channel are mutually and independently ventilated, and an adjusting piece is arranged on the base and connected with the inner air outlet nozzle. The adjusting piece drives the inner air outlet nozzle to move axially, and the air inlet channel is only communicated with one of the first air outlet channel and the second air outlet channel so as to switch the air outlet state of the blower. The utility model mainly ensures that the air outlet state of the blower is switched obviously.

Description

Technical Field

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

[0002] Hair dryers are a common tool for hair care, widely used because they can dry and style hair.

[0003] As a key accessory of hair dryers, the nozzle can be configured to change or optimize the airflow speed, direction, and range within a specific operating mode, thus meeting the needs of different users. Most existing hair dryers use traditional nozzles with a constant air outlet gap. To adjust air pressure and speed, different nozzle sizes are typically used to meet varying usage requirements. However, the presence of multiple nozzles makes operation and storage somewhat cumbersome.

[0004] Prior art CN01819950.X discloses a hair dryer having a housing with a device for allowing airflow between an inlet end and an outlet end of the housing, and a device located near the outlet end that can change the outlet cross-section of the airflow. The device has at least two valves located in the airflow and an actuation device for rotating the valves. In this prior art, the device also has an elongated tubular nozzle integral with an annular nozzle body. The nozzle is connected to the nozzle body by claws, which are designed to slide within the gaps of the tubular support, thus ensuring guidance of the nozzle body's movement. The inner surface of the nozzle body has two radially opposite regions with channels or grooves inclined in one direction on the upper part of the surface and channels or grooves inclined in the opposite direction on the lower part of the surface. The grooves form an angle with the longitudinal axis of the device. The tilt angle and the length of each slot are calculated to allow each valve to fully rotate between a maximum open position and a maximum closed position. The outer surface of the nozzle body has a protruding pin designed to fit into a helical groove on the inner surface of a circumferential control ring. The nozzle is fully within the support body of the device, with both the upper and lower valves facing the circumference of the support. At their maximum separation from the nozzle, the airflow from the blower is guided by the curved walls of the valves and the straight walls of the nozzles, and is blown out in the direction of the arrows in the prior art figures, resulting in a multi-directional dispersed flow. In this configuration, the free cross-sectional area of ​​the airflow is maximized.

[0005] In the prior art, when it is necessary to switch the diffused airflow to the concentrated airflow, the control ring drives the two upper valves and two lower valves to rotate from the maximum open position to the maximum closed position during the nozzle extension process, so that the airflow is blown out of the nozzle. Due to the shape of the inner wall of the tubular support, the two upper valves, the two lower valves, and the outer wall of the nozzle, and the fact that the two upper valves and two lower valves need to rotate, there must be gaps between the tubular support, the two upper valves, the two lower valves and the outer wall of the nozzle. As can be seen from the attached drawings of the prior art, when the airflow of the blower is in a concentrated state, there are gaps between the two upper valves, between the two lower valves and between the valves and the outer peripheral wall of the nozzle. These gaps can easily affect the airflow state when the concentrated airflow flows out, resulting in an insignificant change in the airflow state of the blower. Utility Model Content

[0006] The purpose of this invention is to provide a hair dryer that solves the problem that when the concentrated airflow is blown out, the airflow will flow out from the gap in the outer wall of the nozzle, affecting the airflow state of the hair dryer. By forming a relatively independent first air outlet channel and a second air outlet channel between the inner and outer peripheral walls of the inner air outlet and the inner shell and the outer air outlet, the air outlet state of the hair dryer can be clearly switched.

[0007] To achieve the above objectives, the present invention adopts the following technical solution: a hair dryer, including a head, the head having an air inlet duct and an air outlet assembly, the air outlet assembly being installed at the front end of the head, the air outlet assembly including a base, an inner shell, an inner air outlet and an outer air outlet, the base being connected to the head, the inner shell being installed and connected to the base, the inner air outlet being sleeved around the outer periphery of the inner shell and forming a first air outlet channel with the inner shell, the outer air outlet being sleeved around the outer periphery of the inner air outlet and forming a second air outlet channel with the inner air outlet, the first air outlet channel and the second air outlet channel being ventilated independently of each other, an adjusting component being provided on the base, the adjusting component being connected to the inner air outlet, the adjusting component driving the inner air outlet to move axially relative to the base, the air inlet duct being connected only to one of the first air outlet channel and the second air outlet channel, so as to switch the air outlet state of the hair dryer.

[0008] After adopting the above technical solution, this utility model has the following advantages: An air outlet assembly is installed at the head of the hair dryer. The airflow from the hair dryer is adjusted by the air outlet assembly to meet the user's needs. The air outlet assembly is fixed at the head of the hair dryer by a base, facilitating its installation. After the base is installed, the inner shell is connected to the base, and the inner air outlet is fitted onto the inner shell. A first air outlet channel is formed between the outer wall of the inner shell and the inner wall of the inner air outlet, and a second air outlet channel is formed between the outer wall of the air outlet and the inner wall of the outer air outlet. The first and second air outlet channels ventilate independently. The inner air outlet ensures that the inner and outer walls of the inner air outlet form the first and second air outlet channels respectively with the outer walls of the inner shell and the outer walls of the outer air outlet, avoiding gaps between the first and second air outlet channels and preventing the possibility of indistinct airflow switching between the two channels, thus ensuring the independence of ventilation in both air outlet channels. An adjustable component is installed on the base, which connects to the inner air outlet. When it is necessary to switch between the first and second air outlet channels of the hair dryer, the adjustable component moves the inner air outlet axially relative to the base. This allows switching between the first and second air outlet channels without disassembling the air outlet assembly, avoiding the inconvenience of storage or loss of some air outlets that can occur with hair dryers equipped with multiple air outlets. Furthermore, after the adjustable component moves the inner air outlet along the axial direction of the base, the air inlet channel connects only to the first or only to the second air outlet channel, improving the independence of the first and second air outlet channels. The differentiated design of the first and second air outlet channels easily makes the switching of the hair dryer's airflow status more obvious, allowing users to clearly perceive the change in airflow status during use.

[0009] Furthermore, the adjusting element is fitted around the outer periphery of the base and rotates circumferentially relative to the base to drive the inner air nozzle to move axially relative to the base.

[0010] By adopting the aforementioned technical solution, the adjusting component is located on the outer periphery of the base, making the adjusting component exposed and reducing the difficulty of rotating the adjusting component. When it is necessary to switch the air outlet state of the blower, the adjusting component is rotated on the outer periphery of the base, so that the adjusting component can be rotated axially relative to the base to achieve the switching of the air outlet state. This reduces the difficulty of switching between the first air outlet channel and the second air outlet channel and improves the convenience of use for users.

[0011] Furthermore, the adjusting component drives the inner air outlet to move backward relative to the base, and the inner air outlet cooperates with the inner shell to close the first air outlet channel, while the second air outlet channel is connected to the air inlet channel. The adjusting component drives the inner air outlet to move forward relative to the base, and the inner air outlet cooperates with the machine head to close the second air outlet channel, while the first air outlet channel is connected to the air inlet channel.

[0012] Using the aforementioned technical solution, when switching between the first and second air outlet channels via the adjusting component, when the adjusting component moves the inner air outlet nozzle backward relative to the base, the first air outlet channel is closed by the cooperation of the inner air outlet nozzle and the inner shell, ensuring that only the second air outlet channel is connected to the air inlet duct to achieve air outlet; when the adjusting component moves the inner air outlet nozzle forward relative to the base, the second air outlet channel is closed by the cooperation of the inner air outlet nozzle and the machine head, ensuring that only the first air outlet channel is connected to the air inlet duct to achieve air outlet, ensuring independent ventilation of the first and second air outlet channels. Furthermore, when rotating the adjusting component, the direction of movement of the inner air outlet nozzle can be used to determine whether ventilation is through the first or second air outlet channel. Additionally, the cooperation between the inner air outlet nozzle and the inner shell or the inner air outlet nozzle and the machine head allows for the determination of independent ventilation of the first and second air outlet channels by whether the adjusting component can be rotated during switching, reducing the possibility of simultaneous airflow from the first and second air outlet channels, reducing the possibility of gaps between the first and second air outlet channels, and improving the independence of the first and second air outlet channels.

[0013] Furthermore, the first air outlet channel is a concentrating air channel, and the second air outlet channel is a diverting air channel.

[0014] By adopting the aforementioned technical solution, the first air outlet channel is set as a concentrating air outlet channel and the second air outlet channel is set as an expanding air outlet channel. This results in the first air outlet channel blowing air in a concentrating state and the second air outlet channel blowing air in an expanding state, improving the user experience. Furthermore, with the first and second air outlet channels ventilating independently, the expanding airflow is only within the second air outlet channel, resulting in a more obvious expanding airflow effect and improving the user's ability to distinguish between the concentrating and expanding airflow.

[0015] Furthermore, the adjusting component includes a rotating ring, which is fitted onto the base and axially positioned. The inner side of the rotating ring is provided with a spiral groove, and the outer side of the inner air outlet is provided with a rib that inserts into the spiral groove. The rotating ring rotates circumferentially relative to the base, causing the rib to move within the spiral groove, thereby driving the inner air outlet to move axially relative to the base.

[0016] Using the aforementioned technical solution, the adjusting component is set as a rotating ring with a spiral groove on its inner side. The rotating ring is axially positioned with the base, and the rib on the outer side of the inner air outlet is inserted into the spiral groove. When it is necessary to switch between the first and second air outlet channels, the rotating ring is rotated, and the spiral groove on the inner side of the rotating ring pushes the rib to slide, causing the inner air outlet to slide relative to the base, thus switching the ventilation of the first and second air outlet channels of the blower. This avoids the need to disassemble the air outlet assembly to switch between the first and second air outlet channels, which could lead to the loss of parts or storage problems. The rotation operation reduces the difficulty of switching and improves the convenience of switching.

[0017] Furthermore, the rear end of the inner air outlet is provided with an air guide ring, which is connected to the outlet of the air inlet duct. The air guide ring and the inner shell form an intermediate channel connecting the first air outlet channel and the air inlet duct, so that the blower is in a concentrated air state. The air guide ring is away from the outlet of the air inlet duct and connected to the outer periphery of the inner shell, closing the first air outlet channel and so that the blower is in an expanded air state.

[0018] By adopting the aforementioned technical solution, an air guide ring is provided at the rear end of the inner air outlet. The air guide ring is connected to the outlet of the blower's air inlet duct, which improves the stability of the inner air outlet's connection to the air inlet duct. The air guide ring and the inner shell form an intermediate channel connecting the air inlet duct and the first air outlet channel. After the intermediate channel is connected, the stability of the connection between the air inlet duct and the first air outlet channel is improved, thereby improving the stability of the air outlet from the first air outlet channel. When the air outlet assembly is switched from the air gathering state to the air expanding state, the air guide ring abuts against the outer peripheral wall of the inner air duct, which improves the sealing effect after the first air outlet channel is closed, reduces the possibility of airflow entering the first air outlet channel from the intermediate channel in the air expanding state, and improves the independent blowing effect of the first air outlet channel and the second air outlet channel.

[0019] Furthermore, the outer periphery of the inner shell is provided with an annular stepped surface that protrudes radially outward, and the air guide ring abuts against the annular stepped surface to close the first air outlet channel.

[0020] By adopting the aforementioned technical solution, the annular stepped surface on the outer periphery of the inner shell improves the fit of the guide ring against the outer wall of the inner shell, further reduces the possibility of airflow entering the first air outlet channel under expanded air conditions, and improves the closing effect of the first air outlet channel.

[0021] Furthermore, the air guide ring has a conical structure that is smaller at the rear and larger at the front, with the inner diameter of the rear end of the air guide ring being smaller than the diameter of the outer circumference of the annular stepped surface.

[0022] By adopting the aforementioned technical solution, the air guide ring is set as a conical structure with a smaller rear and a larger front, and the inner diameter of the rear end is smaller than the diameter of the outer circumference of the annular stepped surface. This ensures that the airflow only flows out from the second air outlet channel during the expansion state, and the air guide ring can abut against the annular stepped surface to close the first air outlet channel, further ensuring the independent operation of the first and second air outlet channels.

[0023] Furthermore, the front end of the machine head is provided with a first annular air outlet, and the air guide ring abuts against the outer periphery of the first air outlet to close the second air outlet channel and connect the first air outlet channel with the air inlet channel.

[0024] Using the aforementioned technical solution, the first air outlet at the front end of the machine head is annular, which ensures that the inner wall of the inner air outlet is subjected to uniform force when the first air outlet channel is discharging air. This prevents the adjusting component from driving the inner air outlet to move axially under uneven airflow conditions, reducing the possibility of the first air outlet channel and the second air outlet channel blowing air together. The air guide ring abuts against the outer periphery of the first air outlet, thereby closing the second air outlet channel. This allows the airflow entering the air inlet channel to enter the first air outlet channel more completely, improving the stability of the airflow from the first air outlet channel.

[0025] Furthermore, the front end of the inner air outlet is provided with a guide extending axially relative to the base, and the front end of the inner housing is provided with a guide hole that cooperates with the guide.

[0026] By adopting the aforementioned technical solution, the front end of the inner air outlet and the front end of the inner housing are connected by a guide and a guide hole, which improves the stability of the connection between the inner housing and the inner air outlet, thereby improving the stability of the switching between the air expansion state and the air concentration state, reducing the possibility of the inner air outlet deviating from the axial position during movement, and ensuring that the first air outlet channel and the second air outlet channel are independent air outlets; the cooperation between the guide and the guide hole ensures that the inner air outlet can remain concentric with the inner housing during movement. Attached Figure Description

[0027] The present invention will be further described below with reference to the accompanying drawings:

[0028] Figure 1 This is a schematic diagram of a hair dryer according to the present invention;

[0029] Figure 2 This is an exploded view of the air outlet assembly in this utility model;

[0030] Figure 3 This is a schematic diagram of the hair dryer of this utility model in the air-concentrating state;

[0031] Figure 4 This utility model Figure 3 Enlarged view at point B in the middle;

[0032] Figure 5 This is a schematic diagram of the blower of this utility model in the air-expanding state;

[0033] Figure 6 This utility model Figure 5 Enlarged view at point C;

[0034] Figure 7 This utility model Figure 1 Enlarged view of point A in the middle. Detailed Implementation

[0035] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments.

[0036] The terms "first," "second," etc. (if present) in the specification and claims of this utility model are used to distinguish similar objects, not to describe a specific order or sequence. Even if "second" is used before a technical feature for distinction, it does not necessarily imply the presence of "first." It should be understood that in this utility model, "comprising" and "having," and any variations thereof, are intended to cover non-exclusive inclusion. It should be understood that in this utility model, "multiple" refers to two or more. "And / or" is merely a description of the relationship between related objects, indicating that three relationships can exist. For example, X and / or Y can represent: X alone, X and Y simultaneously, and Y alone. The character " / " generally indicates that the preceding and following related objects are in an "or" relationship. "Containing X, Y, and Z," "Containing X, Y, and Z" means that all three X, Y, and Z are included; "Containing X, Y, or Z" means that one of X, Y, and Z is included; "Containing X, Y, and / or Z" means that any one, two, or three of X, Y, and Z are included.

[0037] The technical solution of this utility model will be described in detail below with specific embodiments. The following specific embodiments can be selected to be combined or substituted with each other according to the actual situation, and the same or similar concepts or processes may not be described again in some embodiments.

[0038] like Figures 1 to 7 As shown, this utility model provides a hair dryer, including a head 1, as... Figure 2 and Figure 3 As shown, the air intake duct 1 has an air inlet duct 11 and an air outlet assembly 2, which is installed at the front end of the air intake duct 1. The air outlet assembly 2 includes a base 21, an inner shell 22, an inner air outlet 23, and an outer air outlet 24. The base 21 is connected to the air intake duct 1. During installation, the base 21 and the air intake duct 1 are connected by magnetic attraction, or the base 21 is sleeved on the outer peripheral wall of the air intake duct 1 and fits tightly against the outer peripheral wall of the air intake duct 1 to stably install the base 21, thereby improving the stability of the base 21 after installation and thus improving the stability of the air outlet assembly 2 after installation. Figure 3 and Figure 4As shown, the inner housing 22 is installed and connected to the base 21, and the inner air outlet 23 is fitted around the outer periphery of the inner housing 22. Compared with the prior art, a first air outlet channel 231 is formed between the outer wall of the inner housing 22 and the inner wall of the inner air outlet 23. An outer air outlet 24 is fitted around the outer periphery of the inner air outlet 23, and a second air outlet channel 241 is formed between the outer wall of the inner air outlet 23 and the inner wall of the outer air outlet 24. The first air outlet channel 231 and the second air outlet channel 241 are ventilated independently, and gaps between the first air outlet channel 231 and the second air outlet channel 241 are avoided. This prevents the possibility of gaps between the two air outlet channels affecting the smooth switching of the air outlet state of the hair dryer, and improves the hair dryer's performance after switching air outlet channels. The stability of the airflow state is ensured by the independent design of the first air outlet channel 231 and the second air outlet channel 241. This allows airflow to exit only from either the second air outlet channel 241 or the first air outlet channel 231, improving the independence of the airflow from the first air outlet channel 231 and the second air outlet channel 241. Furthermore, the first air outlet channel 231 is located inside the inner air outlet 23, while the second air outlet channel 241 is located outside the inner air outlet 23. This differentiated design of the first air outlet channel 231 and the second air outlet channel 241 makes the airflow state switching of the hair dryer more obvious, allowing users to clearly perceive the change in airflow state during use.

[0039] In this embodiment, as Figures 2 to 6 As shown, the base 21 is provided with an adjusting member 25. The adjusting member 25 drives the inner air outlet 23 to move axially relative to the base 21. After the adjusting member 25 is operated, the air inlet duct 11 is only connected to one of the first air outlet duct 231 and the second air outlet duct 241 to switch the air outlet state of the blower. The first air outlet duct 231 and the second air outlet duct 241 are different in length, radial width and shape of inner wall, so that the airflow blown from the first air outlet duct 231 and the second air outlet duct 241 will have different states of temperature, air pressure, air expansion or air concentration. After the adjusting member 25 drives the inner air outlet 23 to move axially, switching the ventilation of the first air outlet duct 231 or the second air outlet duct 241 will result in a change in the air outlet state of the blower. Therefore, the setting of the adjusting member 25 facilitates the switching of the air outlet state of the blower and improves the user experience.

[0040] Specifically, such as Figure 2 and Figure 4As shown, the adjusting component 25 drives the inner air outlet 23 to move backward relative to the base 21. When the inner air outlet 23 engages with the inner housing 22, it closes the first air outlet channel 231, allowing the second air outlet channel 241 to connect with the air inlet channel 11. When the blower is in use, only the second air outlet channel 241 emits air. The adjusting component 25 drives the inner air outlet 23 to move forward relative to the base 21. When the inner air outlet 23 engages with the head 1, it closes the second air outlet channel 241, allowing the first air outlet channel 231 to connect with the air inlet channel 11, ensuring that the first air outlet channel 231 and the second air outlet channel 241 can ventilate independently. When rotating the adjusting component 25, the direction of the forward and backward movement of the inner air outlet 23 can be used to determine whether the ventilation is in the first air outlet channel 231 or the second air outlet channel 241. In addition, the way the inner air outlet 23 cooperates with the inner housing 22 or the inner air outlet 23 cooperates with the head 1 allows the adjustment component 25 to be moved to determine whether the ventilation is independent of the first air outlet channel 231 or the second air outlet channel 241. This reduces the possibility of the first air outlet channel 231 and the second air outlet channel 241 blowing air at the same time and ensures the relative independence of the first air outlet channel 231 and the second air outlet channel 241.

[0041] To facilitate the operation of the adjusting component 25 when switching between the first air outlet channel 231 and the second air outlet channel 241, such as Figure 4 and Figure 5 As shown, the adjusting member 25 is sleeved on the outer periphery of the base 21 and can rotate circumferentially relative to the base 21. During the circumferential rotation of the adjusting member 25 relative to the base 21, it drives the inner air outlet 23 to move axially relative to the base 21, thereby realizing the switching of the first air outlet channel 231 and the second air outlet channel 241.

[0042] In another embodiment, such as Figure 5 As shown, to improve the user experience, the first air outlet channel 231 is configured as a concentrating air outlet channel, and the second air outlet channel 241 is configured as a diverting air outlet channel. When air is ventilated from the first air outlet channel 231, the airflow is in a concentrating state. When the air outlet channel 241 is switched to the second air outlet channel via the adjusting component 25, the airflow is in a diverting state, thus improving the user experience. Furthermore, when the first air outlet channel 231 and the second air outlet channel 241 are ventilated independently, the diverting airflow is only within the second air outlet channel 241, and the airflow has a more obvious diverting effect, improving the user's ability to distinguish between the concentrating and diverting airflow.

[0043] Specifically, during the back-and-forth movement of the inner air outlet 23, such as Figure 4 As shown, the first air outlet duct 231 is connected to the air inlet duct 11, and the blower enters the air-gathering state; as Figure 6As shown, the second air outlet duct 241 connects with the air inlet duct 11, and the blower enters the amplification state. The switching between the blower's concentrating and amplifying states is achieved by the adjusting component 25 moving the inner air outlet 23, avoiding the need to disassemble the inner air outlet 23 or the outer air outlet 24 during the switching process, which could lead to storage problems or the possibility of loss of the disassembled inner air outlet 23 or outer air outlet 24.

[0044] In another embodiment, such as Figure 2 As shown, the adjusting component 25 includes a rotating ring, which is fitted onto the base 21 and axially positioned. The rotating ring can rotate circumferentially relative to the base 21 and is located on the outer peripheral wall of the base 21. The inner side of the rotating ring is provided with a spiral groove 251, and the outer side of the inner air outlet 23 is provided with a rib 233 that inserts into the spiral groove 251. The rib 233 is located on the outer peripheral wall of the rear end of the inner air outlet 23 and extends radially along the inner air outlet 23. The base 21 is provided with a relief groove 211 that extends axially along the base 21. The rib 233 extends out of the relief groove 211 and inserts into the spiral groove 251. When the user needs to switch the air outlet state of the hair dryer, he / she can rotate the rotating ring. This system reduces the difficulty of switching between airflow states. When the first airflow channel 231 is a concentrating airflow channel and the second airflow channel 241 is a diverting airflow channel, and the user needs to switch between the concentrating and diverting airflow states, rotating the rotating ring causes it to rotate circumferentially relative to the base 21. This causes the protruding rib 233 to move within the spiral groove 251, thereby causing the inner air outlet 23 to move axially relative to the base 21. By rotating the rotating ring, the switching between the concentrating and diverting airflow states can be achieved without disassembling the inner air outlet 23 or the outer air outlet 24, avoiding storage issues for the inner air outlet 23 or the outer air outlet 24 after switching, or the possibility of losing the air outlet assembly 2. The rotation operation reduces the difficulty of switching between the concentrating and diverting airflow states and improves the convenience of switching between them. Figure 2 As shown, the outer peripheral wall of the rotating ring is provided with multiple circumferentially distributed protrusions 252. The protrusions 252 increase the friction when rotating the rotating ring, ensuring that the user can manually drive the rotating ring to rotate, thereby driving the inner air outlet 23 to move axially, and avoiding slippage when the user manually rotates the rotating ring, which would prevent the user from switching between the air gathering state and the air expanding state properly.

[0045] To improve the independence of the first air outlet duct 231 and the second air outlet duct 241, such as Figure 2 As shown, the rear end of the inner air outlet 23 is provided with an air guide ring 232, such as... Figure 4As shown, the air guide ring 232 is connected to the outlet of the air inlet duct 11, and the air guide ring 232 and the inner housing 22 form an intermediate channel 2321 connecting the first air outlet channel 231 and the air inlet duct 11, so that the blower enters the air-concentrating state; during the rotation of the adjusting component 25 driving the inner air outlet 23 to move, the air guide ring 232 moves away from the outlet of the air inlet duct 11 and connects to the outer periphery of the inner housing 22, thereby closing the first air outlet channel 231 and making the blower enter the air-expanding state; in the air-concentrating state, the air guide ring is connected to the outlet of the air inlet duct 11 through the air guide ring, ensuring that the airflow enters the first air outlet channel 231 from the air inlet duct 11 and the intermediate channel 2321, thereby ensuring the stability of the airflow in the first air outlet channel 231; in the air-expanding state, as Figure 6 As shown, the first air outlet channel 231 is closed by the air guide ring 232, so that the airflow is only blown out from the second air outlet channel 241, ensuring that the blower is in the amplification state.

[0046] In this embodiment, as Figure 2 and Figure 6 As shown, the outer periphery of the inner shell 22 is provided with an annular stepped surface 221 that protrudes radially outward. When the blower is in the air-expanding state, the air guide ring 232 abuts against the annular stepped surface 221 to close the first air outlet channel 231. The setting of the annular stepped surface 221 increases the contact range when the air guide ring 232 is connected to the inner shell 22, ensuring that the first air outlet channel 231 is closed and improving the stability of the independent air outlet of the first air outlet channel 231 and the second air outlet channel 241.

[0047] Furthermore, such as Figure 4 and Figure 6 As shown, the front end of the machine head 1 is provided with an annular first air outlet 111. In the air-gathering state, the air guide ring 232 abuts against the outer periphery of the first air outlet 111, connecting the first air outlet channel 231 with the air inlet channel 11. The abutment between the air guide ring 232 and the outer periphery of the first air outlet 111 ensures that the airflow in the air inlet channel 11 enters the middle channel and is blown out from the first air outlet channel 231, improving the stability of the airflow blowing from the first air outlet channel 231. In the air-expanding state, the inner wall of the air guide ring 232 abuts against the annular stepped surface 221, closing the first air outlet channel 231, so that the airflow is blown out from the second air outlet channel 241 and forms a diffused airflow.

[0048] To ensure the concentricity of the inner air outlet 23 and the inner housing 22, such as Figure 5 and Figure 7As shown, the front end of the inner air outlet 23 is provided with a guide member 234 extending axially relative to the base 21, and the front end of the inner housing 22 is provided with a guide hole 222 that cooperates with the guide member 234. Through the cooperation of the guide member 234 and the guide hole 222, the inner housing 22 and the inner air outlet 23 are kept coaxial, reducing the possibility that the airflow will enter the first air outlet channel 231 in the expanded air condition after the axis of the inner air outlet 23 deviates from the axis of the inner housing 22. The cooperation of the guide member 234 and the guide hole 222 improves the stability of the inner housing 22 and the inner air outlet 23.

[0049] In this embodiment, as Figure 7 As shown, the guide member 234 is provided with a second air outlet 2341. The second air outlet 2341 is located at the front end of the first air outlet channel 231 and is connected to the first air outlet channel 231 to ensure that the airflow is blown out from the first air outlet channel 231 under the air gathering state, and to ensure that the first air outlet channel 231 can stably output air.

[0050] To enhance the airflow effect during the expansion phase, the inner diameter of the outlet nozzle 24 gradually increases from back to front, causing the outlet end of the outlet nozzle 24 to expand. After the airflow enters the second outlet channel 241, it flows along the inner wall of the outlet nozzle 24 and the outer wall of the inner outlet nozzle 23, ensuring that the airflow shows a significant expansion trend within the second outlet channel 241, thus strengthening the airflow expansion effect.

[0051] In another embodiment, a heating element 12 is provided in the air inlet duct 11. During the use of the hair dryer, the airflow in the air inlet duct 11 is heated by the heating element 12, so that the blown airflow has a certain stability, speeds up the drying speed of the hair, and the airflow with a certain temperature is also convenient for the user to set the hairstyle.

[0052] In addition to the preferred embodiments described above, there are other embodiments of this utility model. All other embodiments obtained by those skilled in the art based on the embodiments of this utility model without creative effort are within the scope of protection claimed by this utility model.

Claims

1. A hair dryer comprising a handpiece having an air inlet duct and a mouthpiece assembly, the mouthpiece assembly being mounted to a forward end of the handpiece, characterised in that, The air outlet nozzle assembly comprises a base, an inner casing, an inner air outlet nozzle and an outer air outlet nozzle, the base is connected with the head, the inner casing is mounted on the base, the inner air outlet nozzle is sleeved on the outer periphery of the inner casing and forms a first air outlet channel with the inner casing, the outer air outlet nozzle is sleeved on the outer periphery of the inner air outlet nozzle and forms a second air outlet channel with the inner air outlet nozzle, the first air outlet channel and the second air outlet channel are independently ventilated, the base is provided with an adjusting member, the adjusting member is connected with the inner air outlet nozzle, the adjusting member drives the inner air outlet nozzle to move axially relative to the base, and the air inlet channel is only communicated with one of the first air outlet channel and the second air outlet channel, so as to switch the air outlet state of the hair dryer.

2. The hair dryer of claim 1, wherein The adjusting member is sleeved on the outer periphery of the base and rotates circumferentially relative to the base to drive the inner air outlet nozzle to move axially relative to the base.

3. The hair dryer of claim 1, wherein The adjusting member drives the inner air outlet nozzle to move backward relative to the base, the inner air outlet nozzle is matched with the inner casing to close the first air outlet channel, the second air outlet channel is communicated with the air inlet channel, the adjusting member drives the inner air outlet nozzle to move forward relative to the base, the inner air outlet nozzle is matched with the head to close the second air outlet channel, and the first air outlet channel is communicated with the air inlet channel.

4. The hair dryer of claim 1, wherein The first air outlet channel is a wind converging channel, and the second air outlet channel is a wind expanding channel.

5. The hair dryer of claim 1, wherein, The adjusting member comprises a rotating ring, the rotating ring is sleeved on the base and is axially positioned, the inner side of the rotating ring is provided with a spiral groove, the outer side of the inner air outlet nozzle is provided with a convex rib inserted into the spiral groove, the rotating ring rotates circumferentially relative to the base, the convex rib moves in the spiral groove, and thus the inner air outlet nozzle is driven to move axially relative to the base.

6. The hair dryer of claim 1, wherein, The rear end of the inner air outlet nozzle is provided with a wind guide ring, the wind guide ring is connected with the outlet of the air inlet channel, an intermediate channel is formed between the wind guide ring and the inner casing and communicated with the first air outlet channel and the air inlet channel, so that the hair dryer is in a wind converging state, the wind guide ring is away from the outlet of the air inlet channel and connected with the outer periphery of the inner casing, the first air outlet channel is closed, and the hair dryer is in a wind expanding state.

7. The hair dryer of claim 6, wherein The outer periphery of the inner casing is provided with an annular stepped surface which is radially outwardly protruded, and the wind guide ring abuts against the annular stepped surface to close the first air outlet channel.

8. The hair dryer of claim 7, wherein, The wind guide ring is a conical structure with a small rear end and a large front end, and the inner diameter of the rear end of the wind guide ring is smaller than the diameter of the outer periphery of the annular stepped surface.

9. The hair dryer of claim 6, wherein, The front end of the head is provided with a ring-shaped first air outlet, the wind guide ring abuts against the outer periphery side of the first air outlet to close the second air outlet channel and communicate the first air outlet channel with the air inlet channel.

10. The hair dryer of claim 1, wherein, The front end of the inner air outlet nozzle is provided with a guide member which extends axially relative to the base, and the front end of the inner casing is provided with a guide hole matched with the guide member.

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