Hair styling rod

Abstract

The utility model relates to the technical field of household appliances, disclose hair styling wand, include: curling tube, including outer tube and inner tube, form curling passageway between outer tube and inner tube, one end of curling tube is hair suction entrance, the other end is air outlet, and the side portion of outer tube is equipped with air inlet air duct, handle, one end is connected in the air inlet air duct department of outer tube side portion, the other end is equipped with air inlet, hot -blast device sets up in handle, is used for converting the airflow that enters from air inlet into hot -blast, and hot -blast is delivered to curling passageway in air inlet air duct, to form the hot -blast airflow of spiral in curling passageway. In the present application, due to the inner tube and the outer tube constraint airflow, the airflow escape is very little, the hair fly phenomenon does not appear in the curling process, and due to the airflow blowing out from the air outlet of the lower end of the curling tube, it will not blow directly, the user experience is better, effectively solve the hot airflow blow person, the hair fly problem of the hair styling wand in the prior art.

Description

Technical Field

[0001] This utility model relates to the field of household appliance technology, specifically to a hair styling stick. Background Technology

[0002] Currently, hair styling irons generally come in three types: manual hair styling irons, automatic hair styling irons, and airflow hair styling irons. Manual curling irons involve using your hands to attach hair to a cylindrical curling iron, which then uses high heat to wrap the hair around the iron and set it. Automatic curling irons involve using your hands to attach hair to the curling iron, which then uses a motor to rotate forward and backward to hold the hair in place, and high heat to set the curl. Airflow curling irons use high-speed hot air to create a ring-shaped airflow on the surface of a cylindrical curling iron. Hair that comes close to the iron is automatically attracted to it, and the high-temperature airflow sets the curl.

[0003] The three types of hair styling tools mentioned above have the following problems: manual hair styling tools use high temperature to curl hair, which can cause burns and damage to the hair, as well as take a long time and have low efficiency; automatic hair styling tools also use high temperature to curl hair, which can cause burns and damage to the hair; and airflow hair styling tools can cause hot air to blow on the hair and cause frizzy hair. Utility Model Content

[0004] In view of this, the present invention provides a hair styling stick to solve the problem of hot airflow blowing into the hair and causing frizz in the curling of existing airflow hair styling sticks.

[0005] This utility model provides a hair styling stick, comprising: A hair curling tube includes an outer tube and an inner tube disposed inside the outer tube, with a hair curling channel formed between the outer tube and the inner tube. The first end of the hair curling tube is configured as a hair inlet and the second end is configured as an air outlet. An air inlet duct communicating with the hair curling channel is provided on the side of the outer tube. The handle has one end connected to the air inlet duct on the side of the outer cylinder and the other end provided with an air inlet. The inner cavity of the handle is connected to the air inlet and the air inlet duct respectively. A hot air device is installed inside the handle. The hot air device is used to convert the airflow entering from the air inlet into hot air and deliver the hot air through the air inlet duct to the curling channel to form a spiral hot airflow in the curling channel. Beneficial effects: The airflow of the hair styling iron enters through the air inlet at the end of the handle and exits through the air outlet at the end of the curling barrel. During use, hair is drawn in through the hair inlet at the top of the curling barrel. Driven by the hot air device, the high-speed hot airflow is blown into the curling channel formed by the inner and outer barrels. The hair is shaped in the spiral airflow, achieving the technical effect of spiraling hair curls. Because the inner and outer barrels constrain the airflow, there is very little airflow escape, and there will be no flyaways during the curling process. Moreover, since the airflow is blown out from the air outlet at the bottom of the curling barrel, it will not blow directly on the user, resulting in a better user experience. This effectively solves the problems of hot airflow blowing into the user and flyaways in existing hair styling irons.

[0006] In one optional embodiment, the angle formed between the central axis of the air inlet duct and the central axis of the outer cylinder is α, where α is less than 90°.

[0007] Beneficial effects: The central axis of the air inlet duct is connected to the central axis of the curling tube at an angle, and the angle α is set to 0° < α < 90°. This makes it easier for the high-speed hot airflow generated by the hot air device to rush into the curling tube and form an impact force towards the air outlet, thereby forming a spiral airflow and achieving the technical effect of airflow curling. At the same time, it avoids the problem of hot airflow escaping from the hair inlet.

[0008] In one alternative implementation, the distance between the central axis of the air inlet duct and the central axis of the outer barrel gradually decreases from the first end of the curling barrel towards the second end.

[0009] Beneficial effects: By setting the distance between the central axis of the air inlet duct and the central axis of the outer barrel to gradually decrease from the first end to the second end of the curling barrel, the high-speed hot airflow creates a downward force as it enters the curling channel. This ensures the airflow has a downward momentum component, allowing it to exit smoothly from the lower air outlet and preventing hot air from blowing into people. Simultaneously, as the high-speed hot airflow enters the curling channel along the inclined air inlet duct, the static pressure near the connection point between the air inlet duct and the curling channel decreases due to the increased airflow velocity, falling below the external atmospheric pressure. This pressure difference drives the air around the hair inlet, including the hair within it, towards the low-pressure area, creating an automatic hair-drawing effect. This allows the hair to enter the curling channel more smoothly, facilitating hair winding and styling.

[0010] In one optional embodiment, a hot air inlet is provided on the side of the outer cylinder, and an interface structure is fixedly provided on the outer cylinder located on the outer periphery of the hot air inlet, and the interface structure is fixedly connected to the handle. The air inlet duct is fixedly installed inside the interface structure. The air inlet end of the air inlet duct is connected to the inner cavity of the handle, and the air outlet end is connected to the hot air inlet.

[0011] Beneficial effects: The interface structure facilitates the connection between the curling iron and the handle, and by placing the air intake duct within the interface structure, the air intake duct can be hidden, improving aesthetics.

[0012] In one alternative embodiment, the outer cylinder includes an inner cylinder and an outer cylinder, with a cavity formed between the inner cylinder and the outer cylinder. The hot air inlet connects the outer and inner cylinders, and the air outlet of the air inlet duct passes through the outer cylinder and connects to the hot air inlet of the inner cylinder.

[0013] Beneficial effects: The outer barrel features a double-layer structure, with an inner and outer barrel spaced apart to form a cavity. The outer barrel not only increases the variety of the outer barrel's appearance but also reduces heat transfer efficiency, acting as a heat insulation and anti-scalding agent, lowering the surface temperature of the curling iron and preventing burns. The inner barrel acts as a guide for curling, restricting hair movement and working in conjunction with the inner barrel to achieve the desired curling effect without causing flyaways. Furthermore, the double-layer structure makes the curling iron more robust and reliable. The air inlet's outlet passes directly through the outer barrel and connects to the hot air inlet of the inner barrel, effectively preventing hot air from entering the cavity between the outer and inner barrels.

[0014] In one alternative embodiment, the hot air device includes: The heating element is located inside the handle; The fan, located inside the handle, draws air from the external environment into the handle through the air inlet and directs it to the heating element. The heated air is then blown into the curling channel through the air inlet duct.

[0015] Beneficial effects: By placing both the heating element and the fan inside the handle, the center of gravity of the hair styling iron is placed on the handle, resulting in a better user experience. Furthermore, having the heating element and fan, among other electrical components, inside the handle facilitates connection to external circuits and allows for easy disassembly and reassembly of the handle from the curling barrel. It also avoids the problem of the heating element being placed inside the curling barrel, which could easily burn the hair.

[0016] In one alternative implementation, the heating element is positioned near one end of the curling barrel, and the fan is located between the air inlet and the heating element.

[0017] Beneficial effects: By placing the heating element near the curling barrel, the heated air can enter the curling channel with a shorter flow path, reducing heat loss and improving the curling effect. By placing the fan between the air inlet and the heating element—that is, upstream of the heating element along the airflow direction—it is ensured that the air flowing through the fan is at room temperature, and the fan itself does not come into contact with the high-temperature airflow. This avoids the thermal aging effects of high-temperature hot air on the fan components, ensuring the long-term operating performance and lifespan of the fan.

[0018] In one alternative embodiment, a control board is also provided inside the handle. The control board is located between the fan and the heating element and is electrically connected to the fan and the heating element respectively. Beneficial effects: By placing the control board between the fan and the heating element, it is convenient to connect to the fan and the heating element respectively. At the same time, by placing the control board upstream of the heating element, damage to the control board caused by the high-temperature airflow after heating can be effectively avoided, thus preventing related safety hazards.

[0019] In one alternative implementation, the handle includes: The grip section and the air intake section are located at the end of the grip section away from the curling tube, and the air intake is a number of air holes arranged around the outer periphery of the air intake section.

[0020] Beneficial effects: The grip section makes it easy for users to hold, and by placing the air inlet on the air intake section, it avoids the user's hand from blocking the air intake.

[0021] In one alternative implementation, the hair styling stick has a use state, in which the handle is perpendicular to the curling barrel. And / or, the hair styling iron has a retracted state, in which the handle is parallel to the curling barrel. Beneficial effects: When the hair styling iron is in use, the central axis of the handle is perpendicular to the central axis of the curling barrel. This design allows users to hold the handle with one hand to operate the main unit while using the other to put hair into the curling barrel, making it convenient for consumers and improving the user experience. When the hair styling iron is stored, the central axis of the handle is parallel to the central axis of the curling barrel. This design not only meets the user's needs but also makes it easy to store after use, reducing packaging volume and transportation costs, achieving the technical effect of convenient storage and reduced transportation and packaging costs. Attached Figure Description

[0022] To more clearly illustrate the specific embodiments of this utility model or the technical solutions in the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0023] Figure 1 This is a schematic diagram of a hair styling stick (with an adapter) in use according to one embodiment of the present utility model. Figure 2 for Figure 1 A sectional view; Figure 3 for Figure 1 A schematic diagram of the airflow patterns during the US-China airborne transmission. Figure 4 This is a schematic diagram of a hair styling stick in a stored state according to one embodiment of the present utility model. Figure 5 for Figure 4 A sectional view; Figure 6 This is a structural schematic diagram of the hair curling tube at one angle in an embodiment of this utility model; Figure 7 for Figure 6 Top view; Figure 8 for Figure 6 Axonometric sectional view; Figure 9 for Figure 8 Another structural diagram from a different perspective; Figure 10 for Figure 6 A sectional view; Figure 11 This is a cross-sectional view of the outer cylinder (including the air inlet duct and interface structure) at the center line position in an embodiment of this utility model; Figure 12 This is a structural schematic diagram of the outer cylinder from the air inlet end of the air inlet duct in an embodiment of the present invention; Figure 13 This is a cross-sectional view of the outer cylinder (including the air inlet duct and interface structure) in an embodiment of the present invention at a position off-center; Figure 14 A magnified view of the simulated airflow effect at the air intake duct (top view). Figure 15 An enlarged view of the simulated airflow effect at the air inlet duct (frontal view); Figure 16 This is a simulation diagram of the airflow of the entire machine; Figure 17An airflow simulation diagram showing that the tail end of the hair curler in this embodiment of the present invention has a set drop. Figure 18 This is a simulation diagram of airflow in an embodiment of the present invention where the tail end of the curling tube does not have a set drop (i.e., the tail ends of the inner and outer tubes are flush). Figure 19 This is a schematic diagram of the handle structure in an embodiment of the present utility model; Figure 20 This is a schematic diagram of the structure of a hair styling stick (with a pivot connection assembly) in use (where the handle and the curling barrel are perpendicular) according to another embodiment of the present invention; Figure 21 This is a schematic diagram of the structure of a hair styling stick (with a pivot connection component) in a stored state according to another embodiment of the present invention; Figure 22 This is an exploded view of the pivot connection assembly in an embodiment of this utility model.

[0024] Explanation of reference numerals in the attached figures: 1. Hair curling iron; 100. Hair curling channel; 101. Hair intake inlet; 102. Air outlet; 10. Roll body; 11. Outer cylinder; 110. Hot air inlet; 111. Outer cylinder; 112. Inner cylinder; 113. Trumpet-shaped structure; 12. Inner cylinder; 120. Spherical structure; 13. Air inlet duct; 131. Air inlet end; 132. Air outlet end; 14. Interface structure; 141. Engaging part; 15. Connecting bars; 2. Handle; 200. Air inlet; 21. Engaging part; 3. Fan; 4. Heating element; 5. Control panel; 6. Pivot connection assembly; 61. First adapter; 610. Shaft hole; 611. Recess; 62. Second adapter; 63. Bellows; 64. Rotating shaft; 7. Adapter. Detailed Implementation

[0025] 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, not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0026] In the description of this utility model, it should be noted that the terms "upper," "lower," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this utility model 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 utility model. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0027] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "connected" and "linked" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0028] Furthermore, the technical features involved in the different embodiments of this utility model described below can be combined with each other as long as they do not conflict with each other.

[0029] Both manual and automatic hair styling irons use high temperatures to style hair. Since the styling temperature exceeds 120℃, there is a risk of burns and hair damage. They can only achieve the single function of curling hair. Automatic curling irons are relatively faster than manual ones. Airflow external rotation curling irons use a high-speed fan to drive the Coanda effect, which drives hot air to form a circulation on the curling barrel to achieve curling. This can avoid burns and hair damage. They can also be equipped with multiple accessories to achieve functions such as curling, straightening, anti-flipping, high crown, and drying hair. However, due to the centrifugal escape phenomenon of the outer circulation of the curling barrel, hot air can blow into the hair and cause frizzy curls.

[0030] The following is combined Figures 1 to 22 The following describes embodiments of the present invention.

[0031] According to an embodiment of the present invention, a hair styling stick is provided, including a curling barrel 1, a handle 2, and a hot air device. The curling barrel 1 includes a barrel body 10, which includes an outer barrel 11 and an inner barrel 12. The inner barrel 12 is disposed inside the outer barrel 11. Preferably, the outer barrel 11 and the inner barrel 12 are coaxially arranged, and a curling channel 100 is formed between the outer barrel 11 and the inner barrel 12 at a distance. The first end of the curling barrel 1 is configured as a hair inlet 101, and the second end is configured as an air outlet 102. The hair inlet 101 and the air outlet 102 are connected together. All are connected to the curling channel 100. The outer tube 11 has an air inlet duct 13 connected to the curling channel 100 on its side. One end of the handle 2 is connected to the air inlet duct 13 on the side of the outer tube 11, and the other end is provided with an air inlet 200. The inner cavity of the handle 2 is connected to the air inlet 200 and the air inlet duct 13 respectively. A hot air device is provided in the handle 2. The hot air device is used to convert the airflow entering from the air inlet 200 into hot air and deliver the hot air to the curling channel 100 through the air inlet duct 13 to form a spiral hot airflow in the curling channel 100. In the above embodiment, the airflow of the hair styling stick enters through the air inlet 200 at the end of the handle 2 and is blown out through the air outlet 102 at the end of the curling tube 1. During use, the hair is drawn in through the hair inlet 101 at the top of the curling tube 1. Driven by the hot air device, the high-speed hot airflow is blown into the curling channel 100 formed by the inner tube 12 and the outer tube 11. The hair is shaped in the spiral airflow, achieving the technical effect of the hair being spirally curled. Because the inner tube 12 and the outer tube 11 constrain the airflow, there is very little airflow escape, and no hair flying occurs during the curling process. Moreover, since the airflow is blown out from the air outlet 102 at the bottom of the curling tube 1, it will not blow directly on the user, resulting in a better user experience. This effectively solves the problem of hot airflow blowing into the user and hair flying during curling in the existing technology of hair styling sticks.

[0032] In one alternative implementation, such as Figure 11 As shown, the angle between the central axis of the air inlet duct 13 and the central axis of the outer cylinder 11 is α, and α is less than 90°.

[0033] In the above embodiment, the central axis of the air inlet duct 13 is connected to the central axis of the hair curler 1 at an angle, and the angle α is set to 0° < α < 90°. This is more conducive to the high-speed hot airflow generated by the hot air device rushing into the hair curler 1 and forming an impact force towards the air outlet 102, thereby forming a spiral airflow and achieving the technical effect of airflow curling. At the same time, it avoids the problem of hot airflow escaping from the hair inlet 101.

[0034] In the above embodiment, the distance between the central axis of the air inlet duct 13 and the central axis of the outer cylinder 11 gradually decreases from the first end of the curling tube 1 to the second end.

[0035] In one optional embodiment, by setting the distance between the central axis of the air inlet duct 13 and the central axis of the outer cylinder 11 to gradually decrease from the first end to the second end of the curling cylinder 1, the high-speed hot airflow will generate a downward force from the first end to the second end when entering the curling channel 100. This ensures that the airflow has a downward momentum component, thus allowing it to be smoothly blown out from the lower air outlet 102, avoiding the problem of hot air blowing in. At the same time, when the high-speed hot airflow enters the curling channel 100 along the inclined air inlet duct 13, the static pressure near the connection point between the air inlet duct 13 and the curling channel 100 decreases due to the increased airflow speed, falling below the external atmospheric pressure and creating a pressure difference. This pressure difference drives the air around the hair inlet 101, including the hair within it, to flow towards the low-pressure area, thereby producing an automatic hair-inhalation effect, allowing the hair to enter the curling channel 100 more smoothly, facilitating hair winding and styling.

[0036] In one alternative embodiment, the air inlet duct 13 along the airflow direction has an air inlet end 131 and an air outlet end 132; the cross-sectional area of ​​the air outlet end 132 of the air inlet duct 13 is smaller than the cross-sectional area of ​​the air inlet end 131 of the air inlet duct 13. By designing the air inlet duct 13 as a converging duct (i.e., the cross-sectional area of ​​the air inlet end 131 is large and the cross-sectional area of ​​the air outlet end 132 is small), the high-speed hot airflow forms a Venturi effect after passing through the air inlet duct 13, accelerating the hot airflow blown out by the hot air device and achieving the technical effect of high-speed airflow pressurization. This allows the hot airflow to have a higher initial wind speed when entering the curling channel 100, thereby forming a high-speed, stable airflow with sufficient pressure. This facilitates the airflow entering the curling tube 1, ensuring that the airflow can overcome resistance and smoothly enter the curling tube 1, effectively penetrating and wrapping the hair bundle. This allows the hair to be efficiently adsorbed onto the curling tube 1, achieving a fast and uniform heating and styling effect, shortening the hair styling time, improving the hair styling effect, and providing a better user experience.

[0037] In one alternative implementation, the cross-sectional area of ​​the air inlet duct 13 gradually decreases from the air inlet end 131 to the air outlet end 132.

[0038] In the above embodiment, the cross-sectional area of ​​the air inlet duct 13 is designed to gradually decrease from the air inlet end 131 to the air outlet end 132 of the air inlet duct 13, so as to avoid the hot air flow in the air inlet duct 13 from becoming turbulent, thereby improving the smoothness of the hot air flow in the air inlet duct 13.

[0039] In one optional embodiment, the cross-sectional area of ​​the air inlet end 131 of the air inlet duct 13 is S1, and the cross-sectional area of ​​the air outlet end 132 of the air inlet duct 13 is S2, where S1 > S2.

[0040] In the above embodiments, by setting the cross-sectional area of ​​the air inlet end 131 and the air outlet end 132 of the air inlet duct 13 within the above-mentioned ratio range, the airflow acceleration can be significantly improved, the surface adsorption force of the hair curler 1 can be greatly enhanced, and the airflow concentration and stability can be better, thereby achieving faster styling speed and more durable and elastic styling effect.

[0041] In one alternative implementation, the air inlet duct 13 has a conical structure.

[0042] In the above embodiment, the air inlet duct 13 is set as a conical structure, which facilitates processing and forming.

[0043] In one optional embodiment, a hot air inlet 110 is provided on the side of the outer cylinder 11, and an interface structure 14 is fixedly provided on the outer cylinder 11 located on the outer periphery of the hot air inlet 110. The interface structure 14 is fixedly connected to the handle 2. The air inlet duct 13 is fixedly provided in the interface structure 14, and the air inlet end 131 of the air inlet duct 13 is connected to the inner cavity of the handle 2, and the air outlet end 132 is connected to the hot air inlet 110.

[0044] In the above embodiment, the interface structure 14 facilitates the connection between the hair curler 1 and the handle 2, and by setting the air inlet duct 13 inside the interface structure 14, the air inlet duct 13 can be hidden, improving the aesthetics.

[0045] In a further embodiment of the above-described embodiments, the air inlet duct 13 and the interface structure 14 are integrally formed.

[0046] In one optional embodiment, the outer cylinder 11 has a double-layer structure, including an inner cylinder 112 and an outer cylinder 111, with a cavity formed between the inner cylinder 112 and the outer cylinder 111; the hot air inlet 110 passes through the outer cylinder 111 and the inner cylinder 112, and the air outlet 132 of the air inlet duct 13 passes through the outer cylinder 111 and is connected to the hot air inlet 110 of the inner cylinder 112.

[0047] In the above embodiment, the outer tube 11 adopts a double-layer structure design, with an inner tube 112 and an outer tube 111 spaced apart to form a cavity. The outer tube 111 not only increases the diversity of the appearance of the outer tube 11, but also reduces the heat transfer efficiency, playing a role in preventing scalding and heat insulation, reducing the surface temperature of the curling tube 1, and preventing burns to the user. The inner tube 112 can provide a curling effect by restricting the movement space of the hair, and together with the inner tube 12, it achieves the technical effect of curling hair, avoiding the phenomenon of hair flying. In addition, the double-layer structure also makes the structure of the curling tube 1 more robust and reliable. Furthermore, the air outlet 132 of the air inlet duct 13 directly passes through the outer tube 111 and is inserted into the hot air inlet 110 of the inner tube 112, which can effectively prevent hot air from entering the cavity between the outer tube 111 and the inner tube 112.

[0048] In other alternative embodiments, the outer cylinder 11 can also be configured as a multi-layer structure with three, four, five, etc.

[0049] In this embodiment, by adopting a built-in hair curling method, the hair curling tube 1 adopts a structural design consisting of an inner tube 12 and an outer tube 11. The inner wall of the outer tube 11 is connected to the air inlet duct 13, and the inner tube 12 is used to fix the hair. The hair curling tube 1 has a double-tube structure consisting of an inner tube 12 and an outer tube 11, which realizes that during the hair curling process, the hair is attracted to the inner tube 12, achieving the technical effect of inward rotation and curling of the hair.

[0050] It should be noted that the number of layers of the outer tube 11 is designed to be n (n≥1), all of which are within the scope of protection of this patent. The single-layer or multi-layer outer tube 11 structure can achieve the functions of appearance and heat insulation, and can also make the structure of the hair curler 1 more robust and reliable.

[0051] In one alternative embodiment, the hot air device includes a heating element 4 and a fan 3. The heating element 4 is disposed inside the handle 2. The fan 3 is disposed inside the handle 2. The fan 3 is used to draw air from the external environment into the handle 2 through the air inlet 200 and guide it to the heating element 4. The hot air heated by the heating element 4 is blown into the curling channel 100 through the air inlet duct 13.

[0052] In the above embodiment, by setting both the heating element 4 and the fan 3 inside the handle 2, the center of gravity of the hair styling stick falls on the handle 2, resulting in a better user experience. Furthermore, since the heating element 4 and the fan 3 are both located inside the handle 2, it is convenient to connect to external circuits and also convenient to detach the handle 2 from the curling tube 1. At the same time, it can also avoid the problem of easily burning the hair when the heating element 4 is located inside the curling tube 1.

[0053] Based on the above embodiments, as a further defined embodiment, the heating element 4 includes, but is not limited to, a heating wire and a heating cylinder. When the heating element 4 is a heating wire, the heating wire is arranged around the inner circumference of the handle 2.

[0054] In one alternative embodiment, the heating element 4 is disposed at one end near the curling tube 1, and the fan 3 is located between the air inlet 200 and the heating element 4.

[0055] In one alternative embodiment, by placing the heating element 4 near one end of the curling cylinder 1, the hot air heated by the heating element 4 can enter the curling channel 100 with a shorter flow path, reducing heat loss and improving the curling effect. By placing the fan 3 between the air inlet 200 and the heating element 4, that is, upstream of the heating element 4 along the airflow direction, it is ensured that the air flowing through the fan 3 is at room temperature, and the fan 3 itself will not come into contact with the high-temperature airflow, thereby avoiding the thermal aging effect of the high-temperature hot air on the fan 3 components and ensuring the long-term operating performance and lifespan of the fan 3.

[0056] In one alternative embodiment, a control board 5 is also provided inside the handle 2. The control board 5 is located between the fan 3 and the heating element 4 and is electrically connected to the fan 3 and the heating element 4 respectively. In the above embodiment, by placing the control board 5 between the fan 3 and the heating element 4, it is convenient to connect to the fan 3 and the heating element 4 respectively. At the same time, by placing the control board 5 upstream of the heating element 4, damage to the control board 5 by the high-temperature airflow after it is heated can be effectively avoided, thus preventing related safety hazards.

[0057] In one alternative embodiment, a button is provided on the handle 2. The button is used to control the power switch and power level of the hair styling stick. The button is connected to the control board 5. When the button is pressed and triggered, the operation signal can be transmitted to the control board 5, which then controls the fan 3 and the heating element 4 to work.

[0058] In one alternative embodiment, the handle 2 includes a grip section and an air inlet section, the air inlet section being located at the end of the grip section away from the curling tube 1, and the air inlet 200 being a plurality of air holes arranged around the outer periphery of the air inlet section.

[0059] In the above embodiments, the grip section is designed to make it easy for users to hold, and by setting the air inlet 200 on the air inlet section, the user's hand is prevented from blocking the air inlet 200.

[0060] In one alternative embodiment, the handle 2 includes a heating element mounting section located at one end of the grip section near the curling tube 1. The heating element 4 is disposed within the heating element mounting section, which can effectively avoid the problem of the heating element 4 being too hot to handle when disposed within the grip section. The button is also disposed on the heating element mounting section for convenient user operation.

[0061] In one alternative embodiment, the hair styling stick has a use state, in which the handle 2 is perpendicular to the curling barrel 1; and / or, the hair styling stick has a storage state, in which the handle 2 is parallel to the curling barrel 1. In the above embodiments, when the hair styling stick is in use, the central axis of the handle 2 is perpendicular to the central axis of the curling barrel 1. This design allows the user to hold the handle 2 with one hand to operate the main unit while simultaneously placing hair into the curling barrel 1 with the other, making it convenient for consumers and improving the user experience. When the hair styling stick is in the storage state, the central axis of the handle 2 is parallel to the central axis of the curling barrel 1. This design not only meets the user's needs but also facilitates storage after use, reducing packaging volume and transportation costs, thus achieving the technical effects of convenient storage and reduced transportation and packaging costs.

[0062] In one embodiment of this application, such as Figures 1 to 5 As shown, the handle 2 and the curling barrel 1 are connected via an adapter 7. The adapter 7 is a corner connector. When you want to store the hair styling iron, detach the handle 2 from the curling barrel 1 and connect them via the adapter 7 to store the hair styling iron; when you want to use the hair styling iron, detach the adapter 7 and connect the handle 2 to the curling barrel 1.

[0063] like Figures 1 to 3 As shown, when the hair styling stick is in use, the handle 2 is detachably and vertically connected to the side of the curling barrel 1.

[0064] In one alternative implementation, the handle 2 is magnetically connected or snapped into the curling iron 1.

[0065] In the above embodiments, the handle 2 and the hair curler 1 are connected by magnetic attraction or snap-fit, which can quickly detach and assemble the handle 2 and the hair curler 1 without the need for disassembly tools, making it more convenient and faster to use.

[0066] In other alternative embodiments, the handle 2 and the curling iron 1 can also be fixed by means of plugging, screw connection or other methods.

[0067] In one optional embodiment, the curling tube 1 and the handle 2 are rotatably engaged and fixed; when the handle 2 is rotated in a set installation direction, the handle 2 and the curling tube 1 are engaged and fixed; when the handle 2 is rotated in a set unlocking direction, the handle 2 and the curling tube 1 are disengaged from the limit.

[0068] In the above embodiment, the hair curler 1 and the handle 2 are fixed by a rotating engagement. The handle 2 can be disassembled and assembled by rotating it in the forward or reverse direction, making disassembly and assembly more convenient and quick.

[0069] In one alternative implementation, combined with Figure 5 , Figure 6 and Figure 19 As shown, the interface structure 14 is provided with a locking part 141, and the handle 2 is provided with a locking engagement part 21. One of the locking part 141 and the locking engagement part 21 is a locking rib, and the other is a locking groove.

[0070] In the above embodiment, the interface structure 14 facilitates the connection between the hair curler 1 and the handle 2. The engaging part 141 on the interface structure 14 and the engaging mating part 21 on the handle 2 adopt a structure of engaging rib and engaging groove, respectively. This not only provides a good engaging effect but also has a simple structure and is easy to process and form.

[0071] Preferably, the engaging part 141 is an engaging rib, and the engaging mating part 21 is an engaging groove.

[0072] In one optional embodiment, the engaging part 141 includes engaging ribs fixedly disposed on the outer periphery of the end of the interface structure 14, and the engaging mating part 21 includes engaging grooves disposed on the inner periphery of the handle 2; there are multiple engaging ribs, and the multiple engaging ribs are spaced apart along the circumferential direction of the interface structure 14, and there are correspondingly multiple engaging grooves, and the multiple engaging grooves and the multiple engaging ribs are engaged and mated in a one-to-one correspondence.

[0073] In the above embodiments, the stability and reliability of the connection between the handle 2 and the curling tube 1 can be further improved by setting multiple engagement grooves and multiple engagement ribs.

[0074] Specifically, the interface structure 14 includes an interface body in the shape of a frustum or approximately a frustum. The large-diameter end of the interface body is fixedly disposed on the outer peripheral wall of the drum body 10 and located on the outer periphery of the hot air inlet 110 on the drum body 10. The small-diameter end of the interface body is connected to the handle 2. The interface structure 14 also includes a connecting section fixedly disposed on the small-diameter end of the interface body. The connecting section is short and cylindrical, and multiple engaging ribs are fixedly disposed on the outer peripheral wall of the connecting section at intervals along the circumference of the connecting section.

[0075] Furthermore, the engaging groove is an L-shaped groove. An annular boss is fixedly provided on the inner circumference of the end of the handle 2 near the hair curler 1, and an L-shaped engaging groove is formed on the annular boss.

[0076] In one alternative embodiment, when the hair styling stick is in the retracted state, the adapter 7 is connected between the curling barrel 1 and the handle 2, so that the handle 2 is parallel to the curling barrel 1. In the above embodiment, when the hair styling stick is in the storage state, the central axis of the handle 2 is parallel to the central axis of the curling barrel 1. With this design, when you want to store the hair styling stick, you can detach the handle 2 from the curling barrel 1 and connect them through the adapter 7 to store the hair styling stick; when you want to use the hair styling stick, you can detach the adapter 7 and connect the handle 2 to the curling barrel 1. This not only meets the user's needs but also makes it convenient for the user to store the hair styling stick after use. At the same time, it can also avoid the problem of easily losing disassembled parts and making them inconvenient to find.

[0077] In a more specific embodiment of the above-described method, the adapter 7 is an L-shaped pipe connector at 90° or an elbow. The adapter 7 is snapped and fixed to the curling iron 1 and the handle 2 respectively.

[0078] Preferably, the adapter 7 is fixed to both the curling iron 1 and the handle 2 by a rotating snap-fit ​​mechanism. Specifically, the end of the adapter 7 connected to the curling iron 1 is provided with a snap-fit ​​part 21, and the end of the adapter 7 connected to the handle 2 is provided with a snap-fit ​​part. The specific structural form, setting angle, and quantity of the snap-fit ​​parts can be referred to the snap-fit ​​parts 21 and 141 on the curling iron 1 and the handle 2, and will not be described in detail here.

[0079] In another embodiment of this application, such as Figures 20 to 22 As shown, one end of the handle 2 is rotatably connected to the hot air inlet 110 on the side of the curling tube 1 via the pivot connection assembly 6, and the pivot connection assembly 6 connects the inner cavity of the handle 2 and the hot air inlet 110.

[0080] The hair styling tool has a use state and a storage state: When the hair styling tool is in use state, the handle 2 can be held in any use position with an angle ≤90° between the central axis of the handle 2 and the central axis of the curling barrel 1 under the action of the pivot connection component 6; when the hair styling tool is in storage state, the handle 2 can be held in a storage position with the central axis of the handle 2 parallel to the central axis of the curling barrel 1 under the action of the pivot connection component 6.

[0081] The design of the pivot connection component 6 allows the hair styling iron to be used at multiple angles and folded for easy storage after use, satisfying the user's needs for use from different angles while also facilitating storage. Furthermore, when the hair styling iron is folded, the central axis of the handle 2 is parallel to the central axis of the curling barrel 10, resulting in a smaller overall size and reducing packaging volume and transportation costs. Additionally, by placing the hot air device inside the handle 2, hot air can be introduced from outside the curling barrel 1, avoiding the risk of burns from having the hot air device directly inside the curling barrel 1.

[0082] In one optional embodiment, the pivot connection assembly 6 includes a first adapter 61, a second adapter 62, and a bellows 63. The first adapter 61 is fixedly disposed on the side of the curling tube 1 and has a first adapter interface that communicates with the hot air inlet 110. The second adapter 62 is fixedly disposed on the handle 2 and has a second adapter interface that connects to the end of the handle 2. The second adapter 62 is rotatably connected to the first adapter 61. The bellows 63 is disposed between the first adapter 61 and the second adapter 62 and is connected at both ends to the first adapter interface and the second adapter interface, respectively.

[0083] In the above embodiment, by providing a first adapter 61 and a second adapter 62 on the hair curler 1 and the handle 2 respectively, and a corrugated pipe 63 between the first adapter 61 and the second adapter 62, the handle 2 and the hair curler 1 can be rotatably connected, while ensuring that the airflow between the handle 2 and the hair curler 1 is normal and smooth.

[0084] Based on the above embodiments, as a further defined embodiment, the first adapter 61 can be fixed to the curling tube 1 by means of adhesive bonding, snap-fitting, screw connection, etc., and the second adapter 62 can be fixed to the handle 2 by means of adhesive bonding, snap-fitting, screw connection, etc. The two ends of the corrugated tube 63 can be fixed to the first adapter interface and the second adapter interface by means of clamping, adhesive bonding, etc.

[0085] In some embodiments, the first adapter 61 is rotated and engaged with the hair curler 1, and the second adapter 62 is rotated and engaged with the handle 2.

[0086] In one alternative embodiment, the pivot connection assembly 6 further includes a rotating shaft 64, the first adapter 61 is provided with a shaft hole 610, the rotating shaft 64 is fixedly disposed on the second adapter 62, and the rotating shaft 64 is rotatably connected in the shaft hole 610.

[0087] In the above embodiment, the first adapter 61 and the second adapter 62 can rotate around the rotating shaft 64 as the rotation center, thereby achieving the technical effect of using the curling iron 1 and the handle 2 at any angle between 0 and 90°.

[0088] Based on the above embodiments, as a further defined embodiment, the central axis of the drum body 10 extends vertically, and the central axis of the rotating shaft 64 extends horizontally. The central axis of the rotating shaft 64 is perpendicular to both the central axis of the drum body 10 and the central axis of the handle 2. In one optional embodiment, the first adapter 61 includes an adapter housing with a receiving cavity, and a bellows 63 is disposed in the receiving cavity; the adapter housing has openings at opposite ends, with one end opening forming a first adapter interface and the other end opening for the bellows 63 to extend out.

[0089] In the above embodiment, the bellows 63 is set in the receiving cavity of the adapter housing, which can hide and protect the bellows 63, and at the same time avoid the problem of the bellows 63 interfering with other components when the handle 2 is turned. The adapter housing is set with openings at both ends, which facilitates docking and communication with the hair curler 1, and also facilitates the connection of the bellows 63 with the second adapter 62.

[0090] In one optional embodiment, the second adapter 62 is U-shaped and includes an end wall and two connecting side walls. The end wall is provided with a second adapter interface. The two connecting side walls are fixedly disposed on opposite sides of the end wall and are rotatably connected to opposite outer sides of the adapter housing.

[0091] In the above embodiment, the second adapter 62 adopts a design with a U-shaped end wall and two connecting side walls, which facilitates rotational connection with the first adapter 61 and allows for clearance to avoid interference with the first adapter 61 during rotation.

[0092] In one alternative embodiment, a recess 611 is provided on the outer wall of the adapter housing; when the central axis of the handle 2 is perpendicular to the central axis of the curling tube 1, the connecting side wall is placed in the recess 611 and matches the contour of the recess 611.

[0093] In the above embodiment, the recessed portion 611 provided on the outer wall of the adapter housing enables the hair styling stick to be more stably maintained in the position when the central axis of the handle 2 is perpendicular to the central axis of the curling body 10. During use, the user can hold the handle 2 with one hand to operate the main unit and put the hair into the curling tube 1 with the other hand, which is convenient for consumers and improves the user experience.

[0094] In one optional embodiment, a friction plate or damping structure is provided between the first adapter 61 and the second adapter 62, so that the first adapter 61 and the second adapter 62 can be held more stably at a set angle position. For example, a friction plate can be provided between the rotating shaft 64 and the shaft hole 610.

[0095] In other alternative embodiments, positioning protrusions can be provided at intervals on the outer periphery of the rotating shaft 64, and multiple positioning grooves can be provided at intervals on the inner periphery of the shaft hole 610. The positioning protrusions and positioning grooves enable the curling tube 1 and the handle 2 to stay at any angle between 0 and 90°.

[0096] In one alternative implementation, the pivot connection assembly 6 is connected between the interface structure 14 and the handle 2.

[0097] Specifically, the interface structure 14 includes an interface body in the shape of a frustum or approximately a frustum. The large-diameter end of the interface body is fixedly disposed on the outer peripheral wall of the drum body 10 and located on the outer periphery of the hot air inlet 110 on the drum body 10. The small-diameter end of the interface body is connected and fixed to the first adapter 61.

[0098] In one alternative implementation, the air inlet end 131 of the air inlet duct 13 is connected to the first adapter of the pivot connection assembly 6, and the air outlet end 132 is connected to the hot air inlet 110.

[0099] In one alternative embodiment, the end face of the inner cylinder 12 near the hair inlet 101 is configured as a guide surface that is high in the middle and low around the edges.

[0100] In the above embodiment, by constructing the side end face of the inner cylinder 12 near the hair inlet 101 as a guide surface that is high in the middle and low around the edges, it can not only increase the smoothness of hair entering the curling channel 100, making it easier for hair to enter the curling tube 1 for curling, but also facilitate the intake of airflow from the periphery of the hair inlet 101 into the curling tube 1, preventing airflow from escaping from the curling tube 1. In one alternative implementation, the guiding surface is a spherical structure 120 or a conical structure.

[0101] In the above embodiments, the guide surface adopts a spherical structure 120 or a conical structure, which not only plays a good guiding role, but also has a regular shape and is easy to process.

[0102] Alternatively, the guiding surface may be a hemispherical or conical surface.

[0103] In one alternative embodiment, the highest point of the guide surface protrudes from the side end face of the outer cylinder 11 near the hair inlet 101.

[0104] In the above embodiment, by setting the highest point of the guide surface to protrude from the side end face of the outer tube 11 near the hair inlet 101, it is not only more conducive to the airflow from the top periphery being drawn into the hair curling tube 1, but also can further increase the smoothness of the hair entering the hair curling tube 1. In addition, since users often need to precisely align the hair with a narrow inlet when using the hair curling tube 1, the highest point of the guide surface provides a clear, highest tactile feedback. Users only need to gently "drop" the hair on this highest point, and the hair will naturally slide into the curling channel 100 under the guidance of the airflow and the spherical curvature, reducing the requirements for operational precision and making the curling process faster and easier.

[0105] Preferably, the top of the hair curler 1 is a hair inlet 101, the bottom of the hair curler 1 is an air outlet 102, the guide surface adopts a spherical structure 120 to avoid the sharp corners scratching the user, and the vertex of the spherical structure 120 is higher than the top surface of the outer tube 11.

[0106] In one alternative embodiment, the end of the outer cylinder 11 near the hair inlet 101 is configured as a flared structure 113.

[0107] In the above embodiment, by setting the top of the outer tube 11 as an inclined trumpet-shaped structure 113, the area at the entrance of the hair into the curling channel 100 can be increased, expanding the "capture range" of the hair suction inlet 101, making it easier for hair to enter the curling tube 1 for curling. The traditional straight tube entrance is a vertical plane, requiring the user to accurately align the hair and bring it close to the entrance, and the hair is prone to slipping. However, this application uses an inclined trumpet to form a wide guiding area. When curling hair, the user does not need to align it precisely. As long as the hair is brought close to this trumpet, it can naturally gather the scattered hair and guide it into the curling channel 100. The operation error tolerance is higher, which is especially suitable for novice or inexperienced users and improves the user experience.

[0108] In one alternative embodiment, the flared structure 113 is tilted at an angle δ relative to the horizontal plane, where 0° < δ < 90°.

[0109] In the above embodiment, by setting δ within the above angle range, the hair can be guided smoothly into the curling channel 100, and the transition between the trumpet-shaped structure 113 and the main body of the outer cylinder 11 can be smooth, reducing damage to the hair. At the same time, the airflow can be optimized and the suction can be enhanced. This can effectively avoid the problem that if δ is too large, it will hinder the hair from entering the curling channel 100 and cause severe friction between the hair and the curling channel, resulting in serious damage to the hair and causing airflow turbulence.

[0110] Preferably, 30° < δ < 60°. By setting δ within the above angle range, the curling iron can achieve a balance between "ease of use and efficiency" and "hair protection and styling effect".

[0111] In one alternative embodiment, the end of the inner cylinder 112 near the hair inlet 101 is shorter than the end of the outer cylinder 111 near the hair inlet 101, and the two are connected by a flared guide ramp.

[0112] In one alternative embodiment, the inner cylinder 112 and the guide ramp are smoothly connected.

[0113] In the above embodiment, the inner cylinder 112 and the guide slope are smoothly connected, which can protect the hair and reduce friction and pulling on the hair. This avoids the sharp right angle at the edge of the hair inlet 101, which would cause the hair to be subjected to concentrated and severe friction and bending at the moment of entry, resulting in damage to the hair cuticle and breakage. In some embodiments, such as Figure 10 As shown, the end of the outer cylinder 11 near the air outlet 102 is longer than the end of the inner cylinder 12 near the air outlet 102, so as to form a set drop D.

[0114] In the above embodiments, such as Figure 18 and Figure 19 As shown, by setting the end of the outer tube 11 near the air outlet 102 to be longer than the end of the inner tube 12 near the air outlet 102, a set drop can be formed between the tail ends of the outer tube 11 and the inner tube 12 (i.e., the end near the air outlet 102). This allows the airflow to converge towards the center under the guidance and restriction of the drop section of the outer tube 11 when it flows out of the air outlet 102, and it will not spread to the surroundings. Therefore, it is less likely to blow away the hair at the ends, resulting in a better overall styling effect after curling, improving the user experience, and effectively solving the problem of existing airflow curling irons where the hair ends are blown away and the curling effect is not ideal after curling.

[0115] In one alternative implementation, such as Figure 10 As shown, the drop D is set to be between 8mm and 12mm.

[0116] In the above embodiment, by setting the drop difference between the inner cylinder 12 and the outer cylinder 11 at a distance of 8mm to 12mm, the airflow convergence effect is more obvious, and the hair is less likely to fly away after the user has finished curling the hair, which can effectively achieve the technical effect of not blowing away the hair after curling.

[0117] Preferably, the drop is set to 10mm.

[0118] In one optional embodiment, the inner cylinder 12 is a closed cylinder, and the side wall of the inner cylinder 12 near the air outlet 102 is a closed plane; the vertical distance between the closed plane and the side end face of the outer cylinder 11 near the air outlet 102 is between 8mm and 12mm.

[0119] In the above embodiment, by setting the inner tube 12 as a closed tube, hair can be effectively prevented from entering the inner tube 12 and affecting the curling effect.

[0120] In some more specific embodiments, the inner cylinder 112 and the outer cylinder 111 are fixed together at the end near the air outlet 102 by an annular end wall. The annular end wall is parallel to the closed plane, and the vertical distance between the two is between 8mm and 12mm.

[0121] In one alternative embodiment, the outer cylinder 11 and the inner cylinder 12 are connected and fixed by a connecting rib 15.

[0122] In the above embodiment, the outer cylinder 11 and the inner cylinder 12 are connected by a connecting rib 15, which not only enables the effective connection and fixation of the inner cylinder 12 and the outer cylinder 11, but also does not block the hair from entering the curling channel 100. This minimizes the obstruction of the hair during the curling process and is more conducive to achieving the technical effect of inward curling of the hair.

[0123] In some more specific and limited embodiments, the cross-sectional shape of the connecting rib 15 can be square, triangular, circular, or near-circular, etc., but this embodiment does not limit it.

[0124] In one alternative embodiment, there are multiple connecting ribs 15, which are spaced apart along the axial direction of the hair curler 1 and staggered in the circumferential direction.

[0125] In the above embodiment, by providing multiple connecting ribs 15 spaced apart along the axial direction of the hair curling tube 1, the inner tube 12 and the outer tube 11 can be fixed more securely and stably throughout the entire length direction. Furthermore, by arranging the multiple connecting ribs 15 in a staggered manner in the circumferential direction, the fixing effect of the inner tube 12 and the outer tube 11 in the circumferential direction can be further improved.

[0126] In this embodiment, the number of connecting ribs 15 n≥2. Preferably, in this embodiment, three cylindrical connecting ribs 15 are used. The three connecting ribs 15 are distributed at the upper, middle and lower positions of the hair curling tube 1 and are arranged at 120° intervals in the circumferential direction.

[0127] The working principle of the hair curler provided in this embodiment is that the hot airflow blown out by the high-speed fan 3 enters the curling channel 100 inside the curling tube 1 through the hot air inlet 110 on the side of the curling tube 1, and forms a spiral hot airflow inside the curling channel 100. The hair enters from the hair inlet 101 at one end of the curling tube 1, and under the action of the spiral hot airflow inside the curling tube 1, the hair is curled and shaped. At the same time, the hot air is blown out from the air outlet 102 at the other end of the curling tube 1. This effectively solves the shortcomings of manual and automatic curling irons on the market, such as high temperature burns, hair damage, long curling time, low efficiency, and single function. It also solves the problem of hot air blowing into the hair and hair flying strands in the curling tubes on the market.

[0128] Although embodiments of the present invention have been described in conjunction with the accompanying drawings, those skilled in the art can make various modifications and variations without departing from the spirit and scope of the present invention, and such modifications and variations all fall within the protection scope of the embodiments of this application.

Claims

1. A hair styling stick, characterized in that, include: A hair curling tube (1) includes an outer tube (11) and an inner tube (12) disposed inside the outer tube (11). A hair curling channel (100) is formed between the outer tube (11) and the inner tube (12). The first end of the hair curling tube (1) is configured as a hair inlet (101) and the second end is configured as an air outlet (102). An air inlet duct (13) communicating with the hair curling channel (100) is provided on the side of the outer tube (11). Handle (2), one end of the handle (2) is connected to the air inlet duct (13) on the side of the outer cylinder (11), and the other end is provided with an air inlet (200). The inner cavity of the handle (2) is connected to the air inlet (200) and the air inlet duct (13) respectively. A hot air device is provided in the handle (2). The hot air device is used to convert the airflow entering from the air inlet (200) into hot air and deliver the hot air through the air inlet duct (13) to the curling channel (100) to form a spiral hot airflow in the curling channel (100).

2. The hair styling stick according to claim 1, characterized in that, The angle between the central axis of the air inlet duct (13) and the central axis of the outer cylinder (11) is α, where α is less than 90°.

3. The hair styling stick according to claim 1, characterized in that, The distance between the central axis of the air inlet duct (13) and the central axis of the outer cylinder (11) gradually decreases from the first end to the second end of the curling tube (1).

4. The hair styling stick according to any one of claims 1 to 3, characterized in that, The outer cylinder (11) is provided with a hot air inlet (110) on its side. An interface structure (14) is fixedly provided on the outer cylinder (11) located on the outer periphery of the hot air inlet (110). The interface structure (14) is fixedly connected to the handle (2). The air inlet duct (13) is fixedly installed inside the interface structure (14). The air inlet end (131) of the air inlet duct (13) is connected to the inner cavity of the handle (2), and the air outlet end (132) is connected to the hot air inlet (110).

5. The hair styling stick according to claim 4, characterized in that, The outer cylinder (11) includes an inner cylinder (112) and an outer cylinder (111), and a cavity is formed between the inner cylinder (112) and the outer cylinder (111); The hot air inlet (110) passes through the outer cylinder (111) and the inner cylinder (112), and the air outlet (132) of the air inlet duct (13) passes through the outer cylinder (111) and is connected to the hot air inlet (110) of the inner cylinder (112).

6. The hair styling stick according to any one of claims 1 to 3, characterized in that, The hot air device includes: A heating element (4) is disposed inside the handle (2); A fan (3) is installed inside the handle (2). The fan (3) is used to draw air from the external environment into the handle (2) through the air inlet (200) and guide it to the heating element (4). The hot air heated by the heating element (4) is blown into the curling channel (100) through the air inlet duct (13).

7. The hair styling stick according to claim 6, characterized in that, The heating element (4) is located at one end near the hair curler (1), and the fan (3) is located between the air inlet (200) and the heating element (4).

8. The hair styling stick according to claim 6, characterized in that, The handle (2) is also provided with a control board (5), which is located between the fan (3) and the heating element (4) and is electrically connected to the fan (3) and the heating element (4) respectively.

9. The hair styling stick according to claim 6, characterized in that, The handle (2) includes: The grip section and the air inlet section are provided. The air inlet section is located at the end of the grip section away from the curling tube (1). The air inlet (200) is a number of air holes arranged around the outer periphery of the air inlet section.

10. The hair styling stick according to any one of claims 1 to 3, characterized in that, The hair styling stick is in use mode. When the hair styling stick is in use mode, the handle (2) is perpendicular to the curling tube (1). And / or, the hair styling stick has a retracted state, and when the hair styling stick is in the retracted state, the handle (2) is parallel to the curling tube (1).

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