A curling iron

Abstract

The application provides a curling iron, comprising a styling part, a blower main body connected with the styling part, the styling part comprising an air assembly and a wind guide assembly assembled to the outer wall of the air assembly, a wind guide channel being formed inside the wind guide assembly, the air assembly being provided with air outlet ports, at least part of the air outlet ports being communicated with the wind guide channel, the wind guide assembly comprising an outer wind guide part, the outer wind guide part being provided with a wind guide part, and the wind guide part being enclosed to form the wind guide channel; a switching assembly is installed on the styling part, the switching assembly being in transmission connection with the wind guide part and used for driving the wind guide part; the outer wind guide part is arranged in multiple layers and along the axial direction of the air assembly, transmission structures being arranged between the adjacent two layers of the outer wind guide part, and the transmission structures being used for cooperating with the switching assembly to realize the step-by-step linkage of each layer of the outer wind guide part. The switching assembly in the application drives the wind guide part to move, so as to change the air outlet direction of the wind guide channel, and meanwhile, the transmission structures are used to realize the step-by-step linkage, so as to drive each layer of the wind guide channel to switch the air outlet direction in turn.

Description

Technical Field

[0001] This application relates to the field of hair styling equipment technology, and more specifically, to a hair curler. Background Technology

[0002] With the continuous iteration and upgrading of personal care appliance technology, hair dryers are no longer limited to the traditional basic hair drying function, but are gradually developing towards integrated hair styling. In daily hair styling scenarios, the demand for styling such as curling and straightening is becoming increasingly popular. Users generally expect to use the high-speed airflow output of hair dryers to allow hair strands to wrap around the outside of curling accessories when the hair is dry or semi-dry, and to achieve quick curling and styling with the help of hot air heating, thus simplifying the professional hair styling process.

[0003] To meet these usage needs, various external hair curling attachments that can be attached to the air outlet of hair dryers have emerged on the market. Most existing hair curling attachments adopt a slender rod-shaped or hollow cylindrical structure. When in operation, the airflow output from the hair dryer is guided and redirected through the internal flow channels of the attachment, forming a circumferential airflow field around the outer circumference of the attachment. Relying on the adsorption and traction of the airflow, the hair strands are guided to automatically wrap around the outer circumference of the attachment, and then the hot air completes the curling and styling of the hair strands.

[0004] However, existing hair curling attachments still have many shortcomings in terms of airflow guiding structure, airflow uniformity, and stability of hair adsorption and entanglement. Problems such as low airflow utilization, poor styling effect, and limited adaptability are quite prominent. Therefore, existing hair curling attachments for hair dryers are generally improved and optimized to address the above problems.

[0005] Existing curling attachments rely on pre-set fixed air guide channels to limit the airflow direction, causing the airflow to form a single-direction swirling flow field on the outer surface of the attachment. Once the outer air guide of such existing products is formed, it is a fixed structure, and the airflow direction cannot be adjusted. This means that users cannot directly switch the curling direction using the same curling attachment. There are problems with the single airflow direction, insufficient flexibility in styling adjustment, and difficulty in quickly switching between forward and reverse directions. Especially when styling different areas of hair in sections, frequent attachment changes will disrupt the styling operation rhythm and significantly reduce the overall user experience.

[0006] In real-world hair styling scenarios, users often need to use different airflow directions to shape their hair based on the distribution of hair on the left and right sides of the head, facial contours, curl layers, and desired style. For example, one side of the hair might need to be curled clockwise, while the other side might need to be curled counter-clockwise. Currently, existing curling irons can only be adapted by replacing the attachment with one that rotates in the opposite direction. This not only increases the number of attachments required but also necessitates frequent disassembly and replacement during the styling process, leading to cumbersome procedures, interruptions, and low efficiency. Furthermore, it creates numerous problems such as difficulty in storing attachments, inconvenience when traveling, and complicated attachment management.

[0007] In summary, how to develop a curling attachment that is compatible with the air outlet of a hair dryer, and which can reliably and quickly switch between clockwise and counterclockwise airflow modes using only a single attachment without disassembling or replacing parts or increasing the number of attachments, has become a core technical problem that urgently needs to be solved in this field. Summary of the Invention

[0008] To address the technical problems mentioned in the background art, this application provides a curling iron that features an air guide section within a multi-layered external air guide component on the air assembly. The air guide section encloses and forms an air guide channel. By switching components to drive the air guide section to move, the air outlet direction of the air guide channel can be changed. Simultaneously, a transmission structure is used to achieve step-by-step linkage, enabling the styling unit as a whole to switch between different air outlet directions. This eliminates the need to disassemble and replace parts, reduces the number of accessories, and improves the user experience.

[0009] The technical solution of the present invention is as follows: A hair curler includes a styling section and a hair dryer body connected to the styling section. The styling section receives airflow from the hair dryer body. The styling section includes an air assembly and an air guide assembly mounted on the outer wall of the air assembly. An air guide channel is formed inside the air guide assembly. The air assembly has an air outlet port, at least a portion of which communicates with the air guide channel. The air guiding assembly includes an outer air guiding component, on which an air guiding section is provided, the air guiding section enclosing and forming the air guiding channel; after the airflow enters the air assembly, it enters the air guiding channel through the air outlet and is then discharged to the outside of the shaping part; a switching assembly is installed on the shaping part, the switching assembly being pulsatorically connected to the air guiding section and used to drive the air guiding section to realize the switching of the air outlet direction of the airflow discharged from the air guiding channel; The external air guide is configured in multiple layers and arranged along the axial direction of the air assembly. A transmission structure is provided between two adjacent layers of the external air guide. The transmission structure is used to cooperate with the switching assembly to realize the step-by-step linkage of each layer of the external air guide and drive the air guide channels of each layer to switch the air outlet direction in sequence.

[0010] As a preferred example of the present invention, an inner air duct is installed in the outer air guide, and a plurality of circumferentially distributed air guides are provided on the inner air duct. The air guides of the inner air duct are fixedly connected to the inner sidewall of the outer air guide through a connecting part. The air guides in the inner air duct and the air guides in the axially adjacent outer air guide form an air guide channel.

[0011] As a preferred example of the present invention, an accommodating space is formed between adjacent air guide portions of one of the external air guide component and the internal air duct component, and the air guide portion of the other is disposed within the accommodating space, and the switching component drives the air guide portion to operate within the accommodating space.

[0012] As a preferred example of the present invention, the air guide portion of the external air guide or the internal air duct component moves within the accommodating space. When it comes into contact with the air guide portion of the other, the two form a disengaging transmission contact engagement to transmit power to the external air guide in the adjacent upper or lower layer, thereby realizing the step-by-step linkage of the external air guide.

[0013] As a preferred example of the present invention, the air outlet ports are circumferentially distributed on the outer wall of the air assembly, and are respectively arranged corresponding to the external air guides located at different heights in the axial direction of the air assembly.

[0014] As a preferred example of the present invention, the air guide assembly includes a bottom air guide component disposed near the air inlet of the air assembly; the air assembly is provided with a mounting portion for fixing the bottom air guide component; the air outlet includes a bottom air outlet, and the bottom air outlet and the mounting portion are both disposed in the lower section of the bottom air guide component; the mounting portion is provided with an exhaust channel communicating with the bottom air outlet.

[0015] As a preferred example of the present invention, the bottom air guide is provided with a bottom air guide inner ring inside; the bottom air guide inner ring is located in the upper section of the bottom air guide and is fixedly connected to the air assembly; the inner sidewall of the bottom air guide is provided with a limiting protrusion; the limiting protrusion and the bottom air guide inner ring cooperate with each other to form a bottom air guide channel, the airflow discharged from the air guide channel is directed toward the bottom of the air assembly in the axial direction, and the airflow discharged from the bottom air guide channel has a component directed toward the top of the air assembly in the axial direction.

[0016] As a preferred example of the present invention, the air guiding assembly further includes an air guiding ring connector disposed between the bottom air guiding member and the adjacent outer air guiding member; the bottom air guiding inner ring is fixedly installed on the air guiding ring connector; the air guiding part in the outer air guiding member can rotate clockwise or counterclockwise around the outer periphery of the air assembly and form a torque transmission cooperation with the air guiding ring connector to switch the tangential direction of the airflow discharged from the bottom air guiding channel relative to the outer surface of the shaped part.

[0017] As a preferred example of the present invention, the switching component includes a driving part, a fixing part, and a bidirectional limiting structure. The fixing part is used to fix the bidirectional limiting structure to the top of the air component. The driving part is sleeved on the outside of the bidirectional limiting structure and rotatably connected to it. The driving part rotates clockwise or counterclockwise relative to the bidirectional limiting structure. The driving part drives any of the external air guides, causing its air guide portion to move, and the transmission structure realizes the step-by-step linkage of each of the external air guides.

[0018] As a preferred example of the present invention, the external air guide includes a top air guide, the driving part is integrally formed with the top air guide, rotating the driving part drives the air guide part of the top air guide to move, and cooperates with the transmission structure to realize the top-to-bottom step-by-step linkage of the remaining external air guides.

[0019] The technical effects of this invention are as follows: 1. The air guide section of this invention directly serves as a component of the air guide channel, eliminating the need for additional independent air guide parts, simplifying the air duct structure, and achieving higher integration and a more compact layout. By setting an air guide section driven by a switching component in the outer air guide, the movement of the air guide section can independently achieve the switching of the air outlet direction. At the same time, a transmission structure is set between two adjacent outer air guides to achieve step-by-step linkage of each outer air guide, which can drive each layer of air guide channel to switch the air outlet direction sequentially, achieving clockwise and counterclockwise bidirectional rotation air outlet switching without the need to replace accessories, resulting in integrated functions and simple operation.

[0020] 2. The adjacent air guides of one of the external air guides and the internal air duct components form an accommodating space, providing an active area for the air guide of the other component, limiting the movement boundary of the air guide, and avoiding movement interference and overtravel. The air guide adjusts the flow cross-sectional area of ​​the air guide channel by changing its position within the accommodating space, realizing the regulation and on / off control of the air duct flow, and the air volume adjustment range is wider. At the same time, the air guide also forms a disengageable transmission engagement with the lower external air guide through the transmission structure, realizing reliable force transmission between levels and ensuring stable and smooth step-by-step linkage transmission.

[0021] 3. When the air guide part of the external air guide or the internal air duct part moves to abut against the air guide part of another component, the two form a disengaging transmission abutment cooperation to form a transmission structure. That is, in this invention, the step-by-step linkage of each layer of external air guide parts is realized through the movement and cooperation between the air guide parts, without the need to set up an additional special linkage force transmission mechanism, which reduces the structural complexity and design cost.

[0022] 4. By setting a bottom air guide and the bottom air guide channel formed inside the bottom of the air component, the airflow discharged from the air guide channel is directed towards the bottom of the air component in the axial direction. At the same time, the airflow discharged from the bottom air guide channel has a component that is directed towards the top of the air component in the axial direction, ensuring that the hair can be wrapped around the styling part and improving the styling effect. Attached Figure Description

[0023] To more clearly illustrate the technical solutions of the embodiments of this application, the accompanying drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of this application and should not be regarded as a limitation of the scope. For those skilled in the art, other related drawings can be obtained based on these drawings without creative effort.

[0024] Figure 1 This is an exploded view of the styling section structure according to an embodiment of the present invention; Figure 2 This is a partial structural diagram of the styling department with the air vents turned clockwise. Figure 3 This is a partial structural diagram of the styling department with the air vents turned counterclockwise. Figure 4 A schematic diagram showing the structural fit between the external air guide and the internal air duct. Figure 5 This is a side sectional view of the overall structure of the styling department; Figure 6 This is a schematic diagram showing the structural fit of the bottom air guide component, the air guide ring connector, and the bottom air guide inner ring. Figure 7 An exploded view of the structure of the bottom air guide, the air guide ring connector, and the bottom air guide inner ring; Reference numerals: 10, Air assembly; 11, Air inlet; 12, Air outlet; 13, Mounting part; 131, Positioning boss; 14, Bottom air outlet; 15, Exhaust duct; 20, Air guide assembly; 21, External air guide; 211, Accommodation space; 212, Top air guide; 22, Air guide duct; 23, Air guide part; 231, Connecting part; 24, Internal air duct component; 25, Bottom air guide; 251, Limiting protrusion; 26, Bottom air guide inner ring; 27, Bottom air guide duct; 28, Air guide ring connector; 30, Switching assembly; 31, Drive part; 32, Fixing part; 33, Bidirectional limiting structure. Detailed Implementation

[0025] To more clearly illustrate the overall concept of this application, a detailed explanation is provided below with reference to the accompanying drawings.

[0026] Many specific details are set forth in the following description in order to provide a full understanding of this application. However, this application may also be implemented in other ways different from those described herein. Therefore, the scope of protection of this application is not limited to the specific embodiments disclosed below.

[0027] The technical solution of this application will be described in detail below with reference to the accompanying drawings.

[0028] A hair curler includes a styling section and a hair dryer body connected to the styling section. The styling section receives airflow from the hair dryer body. The styling section includes an air assembly and a guide assembly mounted on the outer wall of the air assembly. An air guide channel is formed inside the air guide assembly. The air assembly has an air outlet port, at least part of which communicates with the air guide channel. The air guide assembly includes an outer air guide member, which has an air guide section that surrounds and forms the air guide channel. After the airflow enters the air assembly, it enters the air guide channel through the air outlet port and is then discharged to the outside of the styling section. A switching component is installed on the styling section. The switching component is driven by the air guide section and is used to drive the air guide section to switch the airflow direction discharged from the air guide channel. The outer air guide member is configured as multiple layers and arranged along the axial direction of the air assembly. A transmission structure is provided between two adjacent layers of outer air guide members. The transmission structure is used to cooperate with the switching component to realize the step-by-step linkage of each layer of outer air guide members, driving each layer of air guide channel to switch the airflow direction sequentially.

[0029] As described above, the curling iron includes a styling section and a hair dryer body. The styling section receives the airflow from the hair dryer body and guides the airflow into the air circulation path inside the air assembly, flowing from its lower end to its upper end. The air assembly has an air outlet port, at least part of which is connected to the air guide channel. The airflow flows through the air outlet port into the corresponding air guide component. The air guide component is installed on the outer wall of the air assembly and has an air guide channel inside to apply tangential guidance to the airflow, so that the airflow from the air outlet port can form a rotating flow along the outer periphery of the styling section to meet the user's curling styling needs. The air guide component includes an outer air guide, on which an air guide section is provided. Several air guide sections surround to form an air guide channel. At the same time, a switching component is also installed on the styling section and is driven and connected to the air guide section. It is used to directly drive the air guide section to move or indirectly drive the air guide section to move through a transmission structure, so as to realize the switching of the airflow direction discharged from the air guide channel.

[0030] Furthermore, the external air guides are configured in multiple layers, all arranged along the axis of the air assembly. The transmission structure is located between two adjacent layers of external air guides, working in conjunction with the switching component to achieve step-by-step linkage of each layer of external air guides. That is, power is transmitted step-by-step to the air guides in each layer of external air guides, thereby switching the airflow direction of each layer of air guide channels. Step-by-step linkage mainly includes two transmission forms: top-down step-by-step transmission and bottom-up step-by-step transmission. Specifically, the switching component can directly transmit power to the air guide of any layer, and the air guide of that layer starts to move, transmitting power to the transmission structure. The transmission structure drives the air guides in adjacent external air guides to move, realizing step-by-step power transmission. The transmission structure is formed between any two adjacent layers of external air guides after each layer of external air guides is installed in the air assembly. This example can selectively output two opposite swirling airflows on the same shaped part without configuring or replacing additional shaped parts. It integrates functions and is relatively easy to operate.

[0031] like Figures 1-3As shown, the styling section includes an air assembly 10, a wind guide assembly 20, and a switching assembly 30. The air assembly 10 is the main support component and airflow channel forming component of the styling section. Its lower end is connected to the air outlet of the blower body and receives the airflow generated by the blower body through the air inlet 11. The air assembly 10 has a central airflow path inside and multiple air outlet ports 12 on its outer periphery. The airflow flows out from the central airflow path to the air outlet ports 12 and enters the wind guide assembly 20. The wind guide assembly 20 has a wind guide channel 22 inside. The wind guide channel 22 can communicate with the air outlet ports 12 and apply a tangential guiding effect to the airflow. The wind guide channel 22 specifically includes a clockwise wind guide channel and a counterclockwise wind guide channel. The airflow can form a clockwise and / or counterclockwise rotating flow on the outer periphery of the styling section. In this embodiment, the air guide assembly 20 is movably installed on the outer wall of the air assembly 10, including multiple layers of external air guides 21 arranged along the axial direction of the air assembly 10. Each layer of external air guides 21 is equipped with an air guide section 23. In this example, the air guide section 23 can be directly or indirectly driven to move by the switching assembly 30, which is connected to the air guide section 23 for transmission, thereby adjusting the flow rate and air outlet direction of the air guide channel 22 and switching the air outlet direction of the airflow discharged from the air guide channel 22. The preset air outlet direction of the air guide channel 22 may include two positions: clockwise air guide state and counterclockwise air guide state. The switching assembly 30 drives the air guide section 23 to rotate clockwise or counterclockwise to switch the direction, thereby forming the corresponding airflow loop. The left and right rotation directions can be quickly switched according to the user's needs, improving the efficiency of the curling iron. Furthermore, a transmission structure can be set between two adjacent external air guides 21. The transmission structure (not shown in the figure) and the switching component 30 can work together to realize the step-by-step linkage of each external air guide, so as to drive each layer of air guide channel 22 to switch the air outlet direction in sequence. The transmission structure is a structure formed after two adjacent external air guides 21 are installed on the air component 10 or a structure formed after two adjacent external air guides 21 are fixedly installed together. It plays the role of step-by-step power transmission, realizes the switching linkage of each level of air guide channel in the shaping part, reduces the number of parts and reduces the user's operation difficulty.

[0032] Reference Figure 2 , Figure 3 The air guide section 23 can serve as a component of the air guide channel 22, reducing the overall complexity of the external air guide component. It eliminates the need for additional independent air guide components, simplifies the overall air duct layout, and results in higher structural integration and more compact component arrangement. The air guide section 23 can also change the cross-sectional area of ​​the air guide channel 22 through its own displacement movement, which is used to regulate the air volume while realizing inter-level linkage regulation. That is, a transmission structure is set in the transmission interval and the adjacent upper and lower air guide structures 21 to achieve step-by-step linkage and coordination from top to bottom and from bottom to top, and synchronously complete the linkage switching of the air outlet direction.

[0033] In this example, as Figure 2-4As shown, an inner air duct 24 is installed in the outer air guide 21. Each inner air duct 24 has multiple circumferentially distributed air guide sections 23. The air guide sections 23 in the inner air duct 24 and the air guide sections 23 in the axially adjacent outer air guide 21 enclose each other to form an air guide channel 22. That is, the air guide sections 23 in the outer air guide 22 adjacent to the upper or lower layer of the inner air duct 24 can cooperate with the air guide sections 23 in the inner air duct 24 to form the air guide channel 22 of that level. The air guide sections 23 of the inner air duct 24 are fixedly connected to the inner sidewall of the outer air guide 21 through a connecting part 231, achieving an embedded installation of the air guide sections 23 without occupying additional external space.

[0034] The connection between the connecting part 231 and the external air guide 21 mentioned above can be a combination of hook connection, slot connection, plug connection, threaded connection or ultrasonic welding. No specific limitation is made in this example.

[0035] In another embodiment of this example, the outer air guide 21 is provided with an air guide section 23, which can cooperate with the air guide section 23 in the adjacent upper or lower outer air guide 21, eliminating the need for the inner air duct 24. The air guide section 23 inside the outer air guide 21 is integrally formed with its inner sidewall, eliminating the need for additional independent connecting parts. This simplifies the parts assembly structure, effectively reduces the weight of the outer air guide 20 itself, reduces the number of parts in the whole machine, and reduces the overall structural complexity. At the same time, there are fewer assembly steps and the overall structure is stronger, which is conducive to improving production assembly efficiency and product reliability. However, the integrally formed structure with arc-shaped guide surface and limiting and locking structure has problems such as complex shape, complex mold cavity, difficulty in injection molding and demolding, cumulative dimensional error, and difficulty in accurately controlling the coaxiality and fitting clearance of each mating part. Therefore, in practical applications, the choice of whether to select the structural design in this embodiment can be determined according to the requirements.

[0036] In this example, refer to Figure 4 The adjacent air guides 23 of either the outer air guide 21 or the inner air duct 24 form a receiving space 211. At this time, the air guide 23 of the other is located in the receiving space 211. The switching component 30 drives the air guide 23 to move in the receiving space 211. When the air guide 23 moves, its position change in the receiving space 211 can change the flow cross-sectional area of ​​the air guide channel 22, thereby realizing the adjustment of the air duct flow rate and the control of the air duct opening and closing at the current level. The air volume adjustment is flexible and adjustable. At the same time, the receiving space 211 is used to constrain the stroke of the air guide 23, which can avoid the air guide 23 from moving beyond its range or being misaligned and interfered with, ensuring that the air guide 23 moves smoothly and without jamming within the adjustment range, and improving the stability of the air duct adjustment. The current level of the accommodating space 201 is set as the first position and the second position on both sides respectively. When the air guide moves to the first position, it forms a clockwise air guide channel. When it moves to the second position, it switches to a counterclockwise air guide channel, so that the shaping part has the function of quick reversal.

[0037] Furthermore, when the air guide section 23 of the outer air guide 21 or the inner air duct 24 moves within the accommodating space 211, when it comes into contact with the air guide section 23 of another, the two form a disengageable transmission contact engagement. That is, when the air guide section 23 moves to the first position or the second position, it is limited, while the switching component is still in working state. At this time, the two air guide sections 23 that come into contact with each other can cooperate to form the aforementioned transmission structure to transmit power to the air guide section 23 of another. This engagement can transmit power to the adjacent outer air guide 23 or the inner air duct 24. That is, the stationary air guide section can serve as the contact object for power transmission, and cooperate with the movable air guide section to realize torque transmission, meet the disengageable transmission contact requirements between levels, and ensure the stability and reliability of the step-by-step linkage transmission.

[0038] Specifically, refer to Figure 4 In the outer air guide 21, an accommodating space 211 can be formed between two adjacent air guides 23. After receiving the power from the switching component 30, the inner air duct 24 located above it drives its air guide 23 to move within the accommodating space 211 to switch the air outlet direction of the air guide channel 22 in the outer air guide 21 of this level. When the air guide 23 of the inner air duct 24 abuts against the air guide 23 of the outer air guide 21, a disengaging transmission abutment engagement is formed. While restricting the circumferential displacement of the air guide 23, a surface contact is generated to transmit power to the lower outer air guide 21. The overall air outlet direction of the styling part is switched in a step-by-step linkage manner. When the air guide channel 22 is switched, the circumferential displacement of the air guide 23 and the surface contact after abutment will cause a certain amount of film material loss. In order to enhance the reliability of the curling iron, wear-resistant modified materials or local lubrication design can be added to the frequently contacted positions or contact surfaces.

[0039] In another specific embodiment, the accommodating space 211 may also be formed between adjacent air guides 23 of the inner air duct 24, where the lower outer air guide 21 receives power from the drive assembly 30 and controls the air guides 23 to move within the accommodating space 211. At the same time, it transmits power to the upper outer air guide 21 through a disengaging transmission contact, thereby switching the overall air outlet direction of the styling section in a step-by-step linkage manner.

[0040] In the above, the air guides 23 are multiple triangular air guides distributed circumferentially, preferably six, and after assembly, they form an air guide channel extending in the circumferential direction. The number of triangular air guides is not limited to six, and can also be four, five, eight or other circumferentially evenly distributed. At the same time, the shape of the triangular air guides is not limited to a standard triangle, and can also be wedge-shaped, twisted blade-shaped, arc-shaped guide block-shaped or other shapes that can form a spiral spatial guide structure.

[0041] Specifically, the relative displacement angle of the air guide 23 can be set to 10°~60°, preferably 16°, depending on the number of external air guides 21. When the number of external air guides 21 is large, the relative displacement angle should be appropriately reduced to reduce the switching time and operation difficulty for users.

[0042] In this example, as Figure 1 As shown, the air outlets 12 are circumferentially distributed on the outer wall of the air assembly 10, and are respectively arranged with the external air guides 21 at different heights in the axial direction of the air assembly 10, so as to form a multi-level surrounding airflow outside the styling section. Through the axially layered and circumferentially distributed air outlet layout, the multi-layered surrounding air wraps around the hair, increases the contact area between the airflow and the hair, shortens the drying time, and at the same time, the multi-layered surrounding airflow can evenly comb the hair, improve the styling volume, and enhance the overall drying and styling effect.

[0043] Reference Figure 4 The air guide section 23 is provided with an arc-shaped airflow guiding surface, and the several air guide channels 22 provided in each layer of outer air guide component 21 cooperate with each other to form a spiral spatial airflow guiding structure, such as Figure 2 , Figure 3 As shown, in this example, the air guide channel 22 is set as a spiral spatial flow guide structure, which has an inclined tendency to extend in the circumferential direction. At the same time, the side of the air guide 23 is an arc-shaped flow guide surface with a certain torsional curvature, which applies a tangential guiding effect to the airflow. When the airflow passes through the air guide channel 22, it will be guided to form a rotating component that flows around the outer periphery of the styling part, which enhances the air outlet effect of the curling iron.

[0044] In the above, such as Figure 1 and Figure 5As shown, the air guide assembly 20 includes multiple outer air guides 21 stacked along the axial direction of the air assembly 10, forming a multi-level outer air guide assembly 21. Two adjacent outer air guides 21 are nested and arranged on the outer periphery of the air assembly 10 to form the outer contour of the shape part and serve as the boundary constraint surface for airflow. Each layer of the air guide assembly 20 is equipped with an air outlet port 12. The top of one outer air guide 21 extends into the internal cavity of another adjacent outer air guide 21, except for the top outer air guide. The nesting and mating of two adjacent outer air guides 21 can form an annular gap. The air guide channel 22 is arranged inside the annular gap to cooperate in realizing the circular airflow. Among them, the adjacent external air guides 21 are assembled in a nested manner, which ensures precise structural positioning and good coaxiality. This effectively avoids eccentricity and swaying of the external air guides, improving the overall assembly accuracy and structural stability. At the same time, the embedded nested installation reduces external protruding structures, resulting in a neat appearance and a more concentrated air guide channel layout. The adjacent external air guides 21 naturally form an annular gap at the nested joint, eliminating the need for additional air guide partitions to construct the air duct cavity, simplifying the structure and reducing assembly costs. The air guide channel 22 is arranged inside the annular gap, allowing the airflow to flow regularly along the annular gap. The air duct direction is smooth, the wind resistance is low, and the air outlet is more uniform and smooth, reducing turbulence and wind pressure loss.

[0045] Specifically, the number of external air guides 21 depends on the length of the shaped section, the air volume, and the shaped requirements. It is preferably 4 to 8, for example, it can be set to 6 layers, or more than 8 external air guides can be set according to the length requirements. In this example, no specific limit is made on the number.

[0046] In another example, refer to 1 and Figure 6 The air guide assembly 20 includes a bottom air guide 25 disposed near the air inlet 11 of the air assembly 10. The air assembly 10 is provided with a mounting part 13 for fixing the bottom air guide 25. The air assembly 10 includes a bottom air outlet 14. The bottom air outlet 14 and the mounting part 13 are both disposed in the lower section of the bottom air guide 25. The mounting part 13 is provided with an exhaust channel 15 that communicates with the bottom air outlet 14. By setting the exhaust channel 15 in the lower section of the bottom air guide 25 near the air inlet 11, the bottom air outlet 14 is directly connected to the atmosphere, forming a pressure relief port, avoiding internal pressure buildup and wind pressure accumulation, while significantly reducing wind resistance, reducing cavity resonance, and reducing overall noise.

[0047] Among them, such as Figure 6As shown, the mounting part 13 is located below the bottom air outlet 14. Specifically, it can be configured as an annular structure protruding outward from the air assembly 10. The annular structure has a notch design corresponding to the bottom air outlet 14 to form an exhaust channel 15. The mounting part 13 has several positioning bosses 131 protruding on it. The inner side wall of the bottom air guide 25 has a positioning groove that matches the positioning bosses 131 to fix the bottom air guide 25 on the air assembly 10. In this example, the mounting part 13 and the exhaust duct 15 are integrally formed, creating an independent, regular, and smoothly flowing exhaust airflow path at the bottom of the air assembly 10. Through the structural enclosure and airflow guide design of the annular mounting part 13, the airflow direction is constrained, and turbulent airflow and airflow interference are avoided. At the same time, the positioning boss 131 on the mounting part 13 and the positioning groove on the inner side wall of the bottom air guide 25 are fitted together to achieve circumferential limiting, axial positioning, and stable assembly of the bottom air guide 25 on the air assembly 10.

[0048] Furthermore, refer to Figure 1 and 6 The bottom air guide 25 has an inner bottom air guide ring 26 inside. The inner bottom air guide ring 26 is located in the upper section of the bottom air guide 25 and is fixedly connected to the air assembly 10. The inner sidewall of the bottom air guide 25 has a limiting protrusion 251. The limiting protrusion 251 and the inner bottom air guide ring 26 cooperate to form a bottom air guide channel 27, and the inner sidewall of the bottom air guide 25 serves as the boundary for constraining the airflow direction. The bottom air guide channel 27 has a spiral oblique tangential air outlet design similar to the air guide channel 22. The bottom air guide inner ring 26 can be used to receive the rotational force transmitted layer by layer from the upper outer air guide 21, and can also be used to control the conduction direction of the bottom air guide channel 27 in conjunction with the bottom air guide inner ring 26, so that the bottom air guide channel 27 can also switch the air outlet direction synchronously with the multi-layer outer air guide 21, or drive the bottom air guide inner ring 26 through the drive limiting protrusion 251, and transmit the rotational force to the air guide part 23 of the upper outer air guide 21, so that the multi-layer outer air guide 21 switches the air outlet direction step by step from bottom to top.

[0049] The airflow discharged from the air guide channel 22 is directed toward the bottom of the air assembly 10 in the axial direction, and the airflow discharged from the bottom air guide channel 27 has a component directed toward the top of the air assembly 10 in the axial direction, ensuring that the hair is wrapped around the styling part and improving the styling effect. If the bottom air guide channel 27 with upward airflow of the bottom air guide component is missing, the hair will be wrapped around the hair dryer body under the action of the airflow, affecting the user's experience.

[0050] In the above-mentioned configuration, the bottom air guide channel 27 in the bottom air guide component 25 can work in conjunction with the exhaust channel 15 to form a strong complement. By utilizing the height difference, the airflow is forced to be divided into layers and the lower section of the bottom air guide component 25 short straight channel quickly releases the high-pressure main airflow. The remaining air pressure in the cavity is forced to move upward and enter the long path oblique spiral flow channel, realizing two airflow states in the same cavity. It can also realize spiral oblique tangential air outlet, strengthen the coanda wall adhesion. After the airflow turns through the spiral oblique channel, it climbs and surrounds along the outer wall of the air component 10 at a circumferential tilt angle, making up for the defects of the direct airflow dispersion and weak wall adhesion of the lower exhaust channel 15. It forms a continuous wrapping air field in the upper section, improving the ability of hair adsorption, automatic winding and shaping. At the same time, the oblique spiral flow channel is a tortuous path, which can buffer and turbulentize the high-speed airflow, making the upper section air outlet relatively softer and offsetting the strong wind noise of the lower section direct airflow, thereby reducing the overall air outlet noise.

[0051] Furthermore, refer to Figure 6 and Figure 7 The air guide assembly 20 also includes an air guide ring connector 28 disposed between the bottom air guide 25 and the adjacent outer air guide 21. The bottom air guide inner ring 26 is fixedly installed on the air guide ring connector 28. By setting the air guide ring connector 28 between the bottom air guide 25 and the nearest outer air guide 21, the bottom air guide 25 is stably installed on the air assembly 10. The air guide ring connector 28 can also play the roles of installation positioning, limiting cooperation and auxiliary force transmission to ensure the stability and switching reliability of the bottom air guide 25. The air guide part 23 in the outer air guide 21 can rotate clockwise or counterclockwise around the outer periphery of the air assembly 10 and form a torque transmission cooperation with the air guide ring connector 28 to switch the air outlet direction of the bottom air guide channel 27, that is, switch the tangential direction of the airflow discharged from the bottom air guide channel 27 relative to the outer surface of the shaping part. Specifically, several air guide parts 23 can be provided on the top of the air guide ring connector 28 to cooperate with the air guide parts 23 in the outer air guide 21. In another embodiment, a driving force can be applied to the bottom air guide 25, and the bottom air guide inner ring 26 can drive the air guide ring connector 28 to rotate clockwise or counterclockwise around the outer periphery of the air assembly 10. The air guide ring connector 28 cooperates with the adjacent outer air guide 21 to achieve a step-by-step linkage transmission from bottom to top, so that the multi-layer outer air guide 21 can complete the synchronous switching.

[0052] As a preferred example of the present invention, the switching component 30 includes a driving part 31, a fixing part 32, and a bidirectional limiting structure 33. The fixing part 32 is used to fix the bidirectional limiting structure 33 to the top of the air assembly 10. The driving part 31 is sleeved on the outside of the bidirectional limiting structure 33 and rotatably connected to it. The driving part 31 rotates clockwise or counterclockwise relative to the bidirectional limiting structure 33. The driving part 31 is used to drive any external air guide 21, causing its air guide 23 to move, and realizing the step-by-step linkage of each external air guide 21 through the transmission structure. That is, by driving the external air guide 21, the air guide 23 is indirectly driven to move, and the step-by-step linkage between the air guides 23 is transformed into the step-by-step linkage between each layer of external air guides 21, reducing the complexity of the overall driving structure and power transmission process.

[0053] Specifically, the drive unit 31 is a rotary switch, which cooperates with the fixing unit 32 to form a bidirectional limiting structure 33 to limit the clockwise and counterclockwise circumferential rotation stroke of the rotary switch and achieve rotation positioning. By setting a rotary switch on the top of the air assembly 10, the user can apply a rotation action and first drive the uppermost outer air guide 20 to switch, and cooperate with the lower outer air guide 20 to transmit force. Its rotation action can be transmitted downward layer by layer through the adjacent air guides. The bidirectional limiting structure 33 includes a first limiting member and a second positioning limiting member to limit the rotation range of the air guide 22 in the outer air guide 20, and to form positioning in the two positions of clockwise air guide state and counterclockwise air guide state. Similarly, the rotary switch can also be located at the bottom of the air assembly 10, which can drive the bottommost external air guide 20 to rotate, and in conjunction with the external air guide 20 above it, transmit power upwards step by step, so as to realize the step-by-step linkage of each external air guide 20. Specifically, the linkage mode of upper drive or lower drive can be flexibly selected according to the product structure layout, operation mode and actual use needs, to adapt to different overall shapes, button and knob layout positions and internal air duct layout schemes, and expand the product structure adaptability and design versatility.

[0054] In other embodiments of this example, other structures may be used as specific choices for the drive unit 31 to provide power to the air guide unit 23, such as a drive motor, a magnetic drive structure or a linkage reversing mechanism, etc., and the present invention does not specifically limit them.

[0055] Regarding the clockwise and counterclockwise air guiding states, to ensure the accuracy and reliability of switching, the bidirectional limiting structure 33 can form a locking point limiting structure, so that when the drive unit 31 rotates to the target position, it generates clear positioning feedback. The rotational damping mainly comes from the surface contact friction between the air guiding parts 23. At the same time, friction and impact noise can be reduced by reducing the gap and optimizing the surface roughness. It should be noted that, in addition to locking point positioning, the bidirectional limiting structure 33 can also adopt elastic positioning, magnetic positioning, cam stop, notch fit or friction positioning, etc., which are not specifically limited in this example.

[0056] Furthermore, the fastener 32 can be axially fixed by using screws and engaging with the top of the air assembly 10. At the same time, the height limiting structure prevents the external air guides 21 from axially lifting under excessive force, so as to avoid the air guides 23 from overstepping due to lifting, thereby enhancing the overall stability of the curling iron during rotation and operation.

[0057] Furthermore, refer to Figure 1 and Figure 5 The external air guide 21 includes a top air guide 212. The drive unit 31 and the top air guide 212 are integrally formed. Rotating the drive unit 31 drives the air guide part 23 of the top air guide 212 to move, and cooperates with the transmission structure to realize the step-by-step linkage of the other external air guides 21 from top to bottom. The top air guide 212 is axially fixed to the air assembly 10 by the fixing part 32. By making the rotary switch and the top air guide 212 into a single molded structure, defects such as assembly gaps and loose fits between the rotary switch and the top air guide 212 can be eliminated, resulting in a stronger overall structure. The rotary switch feels more solid and has no play when operated, and its stability is better. The top air guide 212 is axially fixed to the air assembly 10 by the fixing part 32, achieving axial positioning and limiting, preventing axial displacement and loosening of the top air guide 212 and the rotary switch, ensuring that the overall structure is firmly assembled and has high positional accuracy. At the same time, the integrated design takes into account both air guiding and rotary control functions, without occupying additional independent installation space, which is conducive to the compact and miniaturized layout of the whole machine structure.

[0058] In other examples of the present invention, in order to enhance the airflow of the curling iron, it can be achieved by adding an additional enhanced airflow structure to the styling section or improving the structure of the air guide section 23. Specific methods include increasing the number of air guide layers to increase the length of the airflow rotation guidance path, optimizing the tilt angle and torsion angle of the triangular air guide to enhance the swirling intensity, adding air guide openings or air guide rib structures to the outer air guide 21, setting local acceleration channels or contraction sections to increase wind speed, and combining different diameter levels to form a gradient air duct structure, etc., to further improve the user experience.

[0059] The curling iron using the above technical solution can be adapted to various working methods. The working principle of one of these methods will be explained below: When the curling iron is working, the airflow generated by the hair dryer body first enters the central airflow path in the air assembly 10 of the styling section, then flows axially along the air assembly 10, and is distributed into the area where each layer of outer air guide 21 is located via multiple air outlet ports 121 on the outer periphery of the air assembly 10. Inside each layer of outer air guide 11, the airflow converges into a spiral inclined air duct formed by adjacent air guides 23. This air guide duct 22 extends obliquely in the circumferential direction, and the sides of the air guides 23 are provided with a torsional arc. As the airflow flows through the air guide duct 22, it is guided accordingly, forming a rotating airflow component that flows around the outer periphery of the styling section.

[0060] When the user rotates the top air guide 212 clockwise to the working position using the rotary switch, refer to Figure 2 The top air guide 212 first switches to a clockwise air guiding state. At this time, the clockwise side air duct is open and the counterclockwise side air duct is closed. As the top air guide 212 continues to rotate, the top air guide 23 and the air guide 23 in the adjacent next-layer outer air guide 21 form a torque transmission through the transmission contact surface, driving the lower outer air guide 21 to synchronously complete the air duct state switching. After each layer of outer air guide 21 completes the state conversion between the open side and the closed side, the air duct inside the entire styling section forms a unified conduction path, realizing clockwise directional rotation air outlet. The bottom air guide inner ring 26 receives the rotation driving force transmitted from the upper layer and cooperates with the bottom air guide 25 to complete the synchronous switching movement of the bottom air guide channel 27. The air guide ring connector 28 forms a stable connection and positioning constraint for the bottom air guide 25 and receives the power transmitted by the air guide assembly 21 to drive the bottom air guide inner ring 26, so as to ensure the structural stability of the linkage switching of the bottom air guide channel 27.

[0061] Similarly, when the user rotates the top air guide 212 counterclockwise to the working position, as... Figure 3 As shown, each layer of external air guide 21 completes the step-by-step linkage switching according to the reverse transmission logic. The original closed side air duct is switched to the open state, and the original open side air duct is switched to the closed state, so that the styling part forms a unified counterclockwise rotating air outlet.

[0062] With this design, the present invention does not require the replacement of additional adapters. By simply rotating and adjusting the top air guide, two opposing airflow directions can be achieved on the same curling attachment, making it convenient to operate and highly integrated.

[0063] Meanwhile, by applying the above working principle, the switching component can also be used as a driving unit in this invention to realize the linkage switching of multi-level external air guides from bottom to top. Specifically, the linkage mode of upper drive or lower drive can be flexibly selected according to the product structure layout, operation mode and actual use needs, adapting to different overall shapes, button and knob layout positions and internal air duct arrangement schemes, thus expanding the product structure adaptability and design versatility.

[0064] The above description is merely a preferred embodiment of the present invention and is not intended to limit the scope of the present invention. All equivalent changes and modifications made in accordance with the present invention are covered by the scope of the claims of the present invention, and will not be listed here.

[0065] In the description of this application, it should be noted that the terms "upper", "lower", "inner", "outer", "front", "rear", "left", "right", etc., indicate the orientation or positional relationship based on the orientation or positional relationship in the working state of this application. They are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this application.

[0066] In the description of this application, unless otherwise expressly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. Those skilled in the art will understand the specific meaning of these terms in this application based on the specific circumstances.

[0067] The present application has been described above with reference to preferred embodiments; however, these embodiments are merely exemplary and illustrative. Various substitutions and modifications can be made to the present application based on these embodiments, all of which fall within the protection scope of the present application.

Claims

1. A curling iron, comprising a styling section and a hair dryer body connected to the styling section, the styling section receiving airflow from the hair dryer body, the styling section including an air assembly and an air guide assembly fitted to the outer wall of the air assembly, the air guide assembly forming an air guide channel inside, the air assembly having an air outlet port, at least a portion of the air outlet port communicating with the air guide channel, characterized in that, The air guiding assembly includes an outer air guiding component, on which an air guiding section is provided, the air guiding section enclosing and forming the air guiding channel; after the airflow enters the air assembly, it enters the air guiding channel through the air outlet and is then discharged to the outside of the shaping part; a switching assembly is installed on the shaping part, the switching assembly being pulsatorically connected to the air guiding section and used to drive the air guiding section to realize the switching of the air outlet direction of the airflow discharged from the air guiding channel; The external air guide is configured in multiple layers and arranged along the axial direction of the air assembly. A transmission structure is provided between two adjacent layers of the external air guide. The transmission structure is used to cooperate with the switching assembly to realize the step-by-step linkage of each layer of the external air guide and drive the air guide channels of each layer to switch the air outlet direction in sequence.

2. A hair curler according to claim 1, characterized in that, An inner air duct is installed in the outer air guide component. The inner air duct has multiple circumferentially distributed air guides. The air guides of the inner air duct are fixedly connected to the inner sidewall of the outer air guide component through a connecting part. The air guides in the inner air duct and the air guides in the axially adjacent outer air guide component enclose each other to form an air guide channel.

3. A hair curler according to claim 2, characterized in that, The adjacent air guides of one of the external air guides and the internal air duct form an accommodating space, and the air guide of the other is located within the accommodating space. The switching component drives the air guide to move within the accommodating space.

4. A hair curler according to claim 3, characterized in that, The air guide portion of the external air guide or the internal air duct component moves within the accommodating space. When it comes into contact with the air guide portion of the other, the two form a disengaging transmission contact engagement to transmit power to the external air guide in the adjacent upper or lower layer, thereby realizing the step-by-step linkage of the external air guide.

5. A hair curler according to claim 1, characterized in that, The air outlet ports are distributed circumferentially on the outer wall of the air assembly, and are respectively arranged corresponding to the external air guides located at different heights in the axial direction of the air assembly.

6. A hair curler according to any one of claims 1-5, characterized in that, The air guide assembly includes a bottom air guide component located near the air inlet of the air assembly; the air assembly has a mounting portion for fixing the bottom air guide component; the air outlet includes a bottom air outlet, and the bottom air outlet and the mounting portion are both located in the lower section of the bottom air guide component; the mounting portion has an exhaust channel that communicates with the bottom air outlet.

7. A hair curler according to claim 6, characterized in that, The bottom air guide component has an inner bottom air guide ring inside; the inner bottom air guide ring is located on the upper section of the bottom air guide component and is fixedly connected to the air assembly; the inner sidewall of the bottom air guide component has a limiting protrusion; the limiting protrusion and the inner bottom air guide ring cooperate to form a bottom air guide channel, the airflow discharged from the air guide channel is directed toward the bottom of the air assembly in the axial direction, and the airflow discharged from the bottom air guide channel has a component that is directed toward the top of the air assembly in the axial direction.

8. A hair curler according to claim 7, characterized in that, The air guiding assembly further includes an air guiding ring connector disposed between the bottom air guiding component and the adjacent outer air guiding component; the bottom air guiding inner ring is fixedly installed on the air guiding ring connector; the air guiding part in the outer air guiding component can rotate clockwise or counterclockwise around the outer periphery of the air assembly and form a torque transmission cooperation with the air guiding ring connector to switch the tangential direction of the airflow discharged from the bottom air guiding channel relative to the outer surface of the shaped part.

9. A hair curler according to claim 1, characterized in that, The switching component includes a driving part, a fixing part, and a bidirectional limiting structure. The fixing part is used to fix the bidirectional limiting structure to the top of the air component. The driving part is sleeved on the outside of the bidirectional limiting structure and rotatably connected to it. The driving part rotates clockwise or counterclockwise relative to the bidirectional limiting structure. The driving part drives any of the external air guides, causing its air guide section to move, and the transmission structure realizes the step-by-step linkage of each of the external air guides.

10. A hair curler according to claim 9, characterized in that, The external air guide includes a top air guide. The driving unit is integrally formed with the top air guide. Rotating the driving unit drives the air guide of the top air guide to move, and cooperates with the transmission structure to realize the step-by-step linkage of the remaining external air guides from top to bottom.

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