A straightening and curling two-in-one hair styling appliance

Abstract

The present application relates to the field of hair styling devices, and specifically to a straightening and curling two-in-one hair styling device, comprising a handle, a curling module and a straightening module; the curling module and the straightening module are independently arranged at one end of the handle, and are radially separated along the handle, with the straightening module located on one side of the curling module, so that the curling module and the straightening module can be used separately without disassembly. Users only need to manually flip the handle, and by adjusting the posture of the hair styling device, they can switch between the "curling" and "straightening" functions. This greatly simplifies the operation process for users who need to mix styles (such as straightening the roots and curling the ends), improves styling efficiency, and thus overcomes the technical defects of the prior art, which requires replacing the curling module or the straightening module to switch between straightening and curling functions, resulting in complicated operations.

Description

Technical Field

[0001] This invention relates to the field of hair styling equipment technology, specifically to a two-in-one hair straightener and curler. Background Technology

[0002] With the improvement of people's living standards, beauty and hair care has become a major consumer sector, and various hair styling tools for beauty and hair care have emerged accordingly, such as hair straighteners and curling irons. Among them, hair straighteners are used to straighten hair, while curling irons are used to shape and fix curly hairstyles.

[0003] Existing hair styling products have relatively limited functions, typically only capable of straightening or curling hair independently. To address this, a patent (publication number: CN212661323U) discloses a two-in-one hair straightener and curler, comprising a curling cap, a handheld unit, a circuit board assembly within the handheld unit for controlling various electrical components, and a first and second clamping plates located at the front end of the handheld unit. Both the first and second clamping plates contain heating elements. The first clamping plate has a first perming plane and a first perming arc surface, while the second clamping plate has a second perming plane and a second perming arc surface. The curling cap is fitted over the first and second clamping plates and detachably connected to the handheld unit. The first clamping plate is rotatably connected to the second clamping plate via a hinge. A rotating motor is also located within the handheld unit, and this motor is driven by the hinge.

[0004] The aforementioned 2-in-1 hair straightener and curler can straighten and curl hair, but when using the straightening function, the curling cap must be separated from the handle, and the straightening component must be coaxial with the handle. In other words, because the curling component exists, the hair straightening component cannot be used directly to straighten hair.

[0005] In summary, it is understandable that existing 2-in-1 hair straighteners and curlers typically require users to switch between straightening and curling functions by changing the curling module (such as a curling iron) or the straightening module (such as a straightener), which is cumbersome. Furthermore, when switching to straightening mode, the straightening module and the handle are coaxially connected. If the length of the straightening module is greater than the length of the curling module, the hair straightener will be too long overall, making it difficult for users to hold the handle, easily causing wrist fatigue, and even loss of control. Summary of the Invention

[0006] The purpose of this invention is to overcome the shortcomings of the prior art and provide a two-in-one hair straightener and curler. It can effectively avoid switching between straightening and curling functions by replacing the curling module or the straightening module. At the same time, it avoids the straightening module being coaxial with the handle, which would cause the hair straightener to be too long and cause wrist fatigue or even loss of control during use.

[0007] This invention is achieved through the following technical solution: A two-in-one hair straightener and curler includes a handle, a curling module, and a straightening module; the curling module and the straightening module are independently disposed at one end of the handle, and the curling module and the straightening module are separated by a radial distance along the handle, such that the straightening module is located on one side of the curling module.

[0008] As described above, the straightening and curling hair styling tool has its straightening and curling modules set at an angle.

[0009] As described above, in the two-in-one hair straightener and curler, the straightening module and the curling module are arranged in parallel.

[0010] As described above, the straightener and curler has a connecting sleeve on one end of the handle, and the straightening module is disposed on the outer wall of the connecting sleeve.

[0011] As described above, the straightening and curling hair styling tool includes a first heating element and a combing body. The first heating element is disposed on a connecting sleeve, and the combing body includes a comb tooth portion. The first heating element has heating teeth that are adapted to the shape of the comb tooth portion, and the comb tooth portion is sleeved on the heating teeth portion.

[0012] As described above, the straightening and curling hair styling tool further includes a heat insulation base embedded in the outer wall of the connecting sleeve, and the first heating element is mounted on the connecting sleeve via the heat insulation base. The comb body further includes a comb body connected and fixed to the comb teeth, which are mounted on the comb body. The shape of the comb body is adapted to the shape of the heat insulation base, and the comb body is fitted onto the heat insulation base.

[0013] As described above, in the two-in-one hair straightener and curler, at least one end of the bottom of the first heating element is fixed with a connecting part, and a support sleeve is fixed inside the connecting sleeve, with the connecting part and the support sleeve being connected and fixed.

[0014] As described above, in the two-in-one hair straightener and curler, the end of the connecting sleeve facing away from the handle is an open end. The handle and the connecting sleeve are connected to form the main body shell. The curling module is located inside the main body shell. A through groove is provided on the main body shell along its own axial direction, penetrating the open end. The through groove is correspondingly connected to the hair inlet channel on the curling module.

[0015] As described above, the straightening and curling hair styling tool includes a curling sleeve, a second heating element, and a driving mechanism. The second heating element is located inside the curling sleeve, and a heating channel is formed between them. The driving mechanism is located inside the handle and is drivenly connected to the first end of the curling sleeve located inside the connecting sleeve. The driving mechanism is used to drive the curling sleeve to rotate around the second heating element. The curling sleeve has a hair inlet channel that extends along the axial direction of the curling sleeve and passes through the second end of the curling sleeve.

[0016] As described above, the straightening and curling hair styling tool also includes a cap head, which is located at one end of the second heating element facing away from the driving mechanism. The cap head is provided with a hair inlet groove corresponding to and communicating with the hair inlet channel and a hair inlet opposite to the hair inlet groove.

[0017] As described above, the two-in-one hair straightener and curler includes a drive mechanism comprising a drive unit, an internal gear, and an external gear. The output end of the drive unit is connected to the internal gear for drive. The drive unit is used to drive the internal gear to rotate around the axis of the curling sleeve. The external gear is rotatably disposed inside the handle and meshes with the internal gear for transmission. The curling sleeve is fixed on the external gear.

[0018] The hair straightener and curler combo described above also includes a control unit, which is located inside the handle. When the curling module and the straightening module are both held on the handle, the control unit controls the curling module to perform the curling function and / or the straightening module to perform the straightening function.

[0019] Compared with the prior art, the present invention has the following advantages: 1. The hair straightener and curler combo of the present invention independently mounts the curling module and the straightening module at one end of the handle, with the two modules spaced radially apart along the handle. This allows the curling and straightening modules to be used separately without disassembly. Users can switch between the "curling" and "straightening" functions simply by manually flipping the handle and adjusting the posture of the hair straightener. This greatly simplifies the operation process for users who need mixed styling (e.g., straightening the roots and curling the ends), improves styling efficiency, and overcomes the technical shortcomings of existing methods that require changing either the curling or straightening module to switch between straightening and curling functions, resulting in cumbersome operation.

[0020] 2. The curling module is located on one side of the straightening module, which makes the curling and straightening modules reasonably distributed in space. This avoids the straightening module being coaxially connected to the handle, which would make the hair styling tool too long, causing users to have difficulty holding the handle, easily leading to wrist fatigue, or even the risk of losing control of the operation. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the structure of the hair styling device of the present invention; Figure 2 for Figure 1 Another structural diagram from a different angle; Figure 3 for Figure 2 The attempt; Figure 4 for Figure 3 Sectional view at point AA; Figure 5 for Figure 4 Enlarged structural diagram at point B; Figure 6 This is a schematic diagram of the structure of the hair comb in the embodiment; Figure 7 for Figure 6 Another structural diagram from a different angle; Figure 8 This is a schematic diagram of the structure of the heat insulation seat in the embodiment; Figure 9 This is a schematic diagram of the structure of the first heating element in the embodiment; Figure 10 for Figure 2 A schematic diagram of the structure without the support sleeve; Figure 11 This is a schematic diagram of the support sleeve involved in the embodiment; Figure 12 This is a schematic diagram illustrating the connection between the hair curling module and the heat insulation rod in the embodiment. Figure 13 for Figure 12 A magnified structural diagram at point C.

[0022] Numbers in the attached drawings: 1. Handle; 10. Power switch button; 11. Straightening button; 12. Curling button; 13. Rotation button; 14. Connecting sleeve; 140. Blocking part; 141. Buckle; 142. Through slot; 2. Straightening module; 20. Heat insulation base; 201. Insulation body; 202. Insulation part; 203. Groove; 21. First heating element; 210. Heating body; 211. Heating teeth; 212. Heating teeth; 213. Heating surface; 214. Groove; 215. Connecting part; 22. 220. Comb body; 221. Comb teeth; 222. Comb teeth; 223. Comb groove; 224. Protrusion; 3. Curling module; 30. Curling sleeve; 301. Hair inlet channel; 31. Second heating element; 32. Cap; 320. Hair inlet groove; 321. Hair inlet; 33. Drive unit; 34. Internal gear; 35. External gear; 350. Positioning point; 4. Control unit; 40. Positioning sensor; 5. Indicator light; 6. Support sleeve; 60. Slot; 7. Heat insulation rod. Detailed Implementation

[0023] To make the objectives, technical solutions, and advantages of this invention clearer, the invention will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are for illustrative purposes only and are not intended to limit the invention.

[0024] To enable those skilled in the art to better understand the present invention, the technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort should fall within the scope of protection of the present invention.

[0025] It should be noted that in the description of this invention, terms such as "upper," "lower," "left," "right," "inner," and "outer," indicating directional or positional relationships, are based on the directional or positional relationships shown in the accompanying drawings. These are merely for ease of description and do not indicate or imply that the device or element must have a specific orientation, or be constructed and operated in a specific orientation; therefore, they should not be construed as limitations on this invention. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance. Additionally, it should be noted that in the description of this invention, unless otherwise explicitly specified and limited, the terms "installation," "setting," and "connection" 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 direct connection or an indirect connection through an intermediate medium; and they can refer to the internal communication of two elements. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0026] Example 1 Please refer to Figures 1-13 This invention provides a two-in-one hair straightener and curler.

[0027] Reference Figure 1 and Figure 4 The hair straightener and curler combo of this embodiment includes a handle 1, a curling module 3, a straightening module 2, and a control unit 4. The curling module 3 and the straightening module 2 are independently disposed at one end of the handle 1, and are radially spaced apart from each other along the handle 1, with the straightening module 2 located on one side of the curling module 3. The control unit 4 is disposed inside the handle 1. When the curling module 3 and the straightening module 2 are simultaneously held on the handle 1, the control unit 4 is a control circuit board that controls the curling module 3 to perform the curling function and / or the straightening module 2 to perform the straightening function.

[0028] Reference Figure 1 , Figure 2 and Figure 4 The handle 1 is equipped with a power switch button 10, a straightening button 11, a curling button 12, and a rotation button 13, all of which are controlled by the control unit 4. In use, first turn on the power switch button 10 to power on the hair stylist. When the user needs to straighten hair, turn on the straightening button 11; at this time, the straightening module 2 is in working condition and can straighten hair. When the user needs to curl hair, turn on the curling button 12; at this time, the curling module 3 is in working condition and can curl hair.

[0029] In summary, the curling module 3 and straightening module 2 can be used independently without disassembly. Users can switch between "curling" and "straightening" functions simply by manually flipping handle 1 and adjusting the posture of the hair stylist. This greatly simplifies the operation process for users who need mixed styling (such as straightening the roots and curling the ends), improving styling efficiency and overcoming the technical shortcomings of existing methods that require replacing either the curling module 3 or the straightening module 2 to switch between straightening and curling functions, resulting in cumbersome operation. Furthermore, the curling module 3 is located on one side of the straightening module 2, and the two are radially spaced along handle 1. This avoids a coaxial connection between the straightening module 2 and handle 1, which would make the hair stylist too long, causing users to strain their hands, leading to wrist fatigue, and even the risk of loss of control.

[0030] It should be noted that since the curling module 3 and the straightening module 2 can be in standby mode at the same time, switching does not require disassembly. Compared with the traditional interchangeable head straightening and curling two-in-one hair styling tool, the straightening and curling two-in-one hair styling tool in this embodiment realizes the one-button switching function, which is suitable for alternating use of straight hair and curling hair during the styling process.

[0031] As a preferred option, refer to Figure 4 The straightening module 2 and the curling module 3 are set at an angle to reduce interference and allow the user to see more clearly the hair being clamped or wrapped. For example, when the user is using the curling module 3 to curl their hair, the curling module 3 can block most of the view of the straightening module 2, allowing the user to see more clearly the hair being wrapped; when the user is using the straightening module 2 to straighten their hair, the straightening module 2 can block most of the view of the curling module 3, allowing the user to see more clearly the hair being clamped.

[0032] As a preferred option, refer to Figure 1A connecting sleeve 14 is provided on one end of the handle 1. The connecting sleeve 14 is integrally formed with the handle 1, and the end of the connecting sleeve 14 facing away from the handle 1 is an open end. The handle 1 and the connecting sleeve 14 are connected to form the main body shell. The hair straightening module 2 is set on the outer wall of the connecting sleeve 14. On the one hand, the setting of the connecting sleeve 14 facilitates the installation of the hair straightening module 2, and on the other hand, it can provide support for the hair straightening module 2 and improve the stability of the hair straightening module 2.

[0033] As a preferred option, refer to Figure 1 and Figure 2 The hair straightening module 2 includes a first heating element 21, a comb body 22, and a heat insulation seat 20. The heat insulation seat 20 is embedded in the outer wall of the connecting sleeve 14. The first heating element 21 is mounted on the connecting sleeve 14 through the heat insulation seat 20, which prevents the heat generated by the first heating element 21 during operation from being transferred to the connecting sleeve 14 and the handle 1, thereby preventing the temperature of the handle 1 from rising and affecting the user experience.

[0034] As a preferred option, refer to Figures 4-9 Two blocking portions 140 are fixed on the outer wall of the connecting sleeve 14; the heat insulation seat 20 is located between the two blocking portions 140. The heat insulation seat 20 includes an isolation body 201 and an isolation portion 202, which are integrally connected. Isolation portions 202 are fixed at both ends of the isolation body 201, and each isolation portion 202 is in contact with each blocking portion 140. The first heating element 21 is located between the two isolation portions 202; the first heating element 21 includes a heating body 210 and a heating tooth portion 211. The heating body 210 is fixed on the heat insulation seat 20, and the heating body 210 and the heating tooth portion 211 are integrally connected. The hair comb 22 includes a comb tooth section 221 and a hair comb body 220. The comb tooth section 221 and the hair comb body 220 are integrally formed. The shape of the hair comb body 220 is adapted to the shape of the heat insulation seat 20. The hair comb body 220 is fitted on the heat insulation seat 20, so that the hair comb body 22 and the heat insulation seat 20 are firmly connected, preventing rotation or loosening when subjected to force during use. The heat insulation seat 20 mainly separates the first heating element 21 from the main unit shell, and plays the role of heat insulation and anti-scalding.

[0035] Furthermore, the comb body 220 has comb teeth 221 between its two ends. The shape of the comb teeth 221 matches the shape of the heating teeth 211, and the comb teeth 221 is fitted onto the heating teeth 211. The comb teeth 221 includes multiple comb teeth 222; the heating teeth 211 includes multiple heating teeth 212, with each heating tooth 212 corresponding to each comb tooth 222. Each comb tooth 222 of the comb teeth 221 has a hollow center, which can be understood as each comb tooth 222 having an inverted "U" shape. A comb groove 223 (i.e., a channel for hair to pass through) is formed between adjacent comb teeth 222. Thus, when the comb teeth 221 are fitted onto the heating teeth 211, both opposite sides of the comb groove 223 become heating surfaces 213. Therefore, when the hair passes through the comb groove 223, it is no longer heated on only one side, but is simultaneously enveloped by the heat from both sides of the comb groove 223. This "layered" heating can greatly improve the heat conduction efficiency, making the hair heat more evenly and style faster, reducing the damage to the hair caused by repeated straightening, and greatly improving the efficiency of straightening hair.

[0036] When hair passes through the comb groove 223 formed by two adjacent comb teeth 222, the heating surfaces 213 on both sides of the comb groove 223 can be configured as smooth heating surfaces, so that the hair strands can glide more smoothly and reduce the feeling of hair getting stuck or pulled.

[0037] During combing, the comb teeth 222 are subjected to pulling and frictional forces from the hair, which may cause the comb teeth 221 to slide along the axial direction of the heated teeth 211 after prolonged use or thermal expansion. To address this, a protrusion 224 is provided at the top of each comb tooth 222, and a groove 214 is provided at the top of each heated tooth 212. The protrusion 224 fits into the groove 214. After the comb teeth 221 are fitted onto the heated teeth 211, the protrusion 224 engages within the groove 214. This engagement prevents the comb teeth 221 from sliding along the axial direction of the heated teeth 211 after prolonged use or thermal expansion. Furthermore, the engagement of the protrusion 224 and the groove 214 ensures that each comb tooth 222 is precisely fitted onto each heated tooth 212, thereby ensuring that each comb groove 223 is of uniform size and further improving the straightening effect.

[0038] It is worth noting that the comb teeth 221 cover the heating teeth 211, which can prevent the user from directly touching the high-temperature first heating element 21, thereby improving the safety of using the hair styling device in this embodiment.

[0039] As a preferred option, refer to Figure 9At least one end of the bottom of the first heating element 21 is fixed with a connecting portion 215, and a support sleeve 6 is fixed inside the connecting sleeve 14. The connecting portion 215 and the support sleeve 6 can be connected and fixed by fasteners (such as screws). Specifically, a slot 203 is provided on the isolation body 201, and the connecting portion 215 extends from the slot 203 into the connecting sleeve 14 and is connected and fixed to the support sleeve 6. Thus, by transferring the fixing point of the heating element from the heat insulation component to the independent support sleeve 6, the first heating element 21 is prevented from being directly fixed to the isolation body 201, thereby preventing the heat of the first heating element 21 from being directly conducted to the handle 1 through the fixing anchor point between the first heating element 21 and the isolation body 201; in addition, by using the independent support sleeve 6 as the fixing anchor point of the first heating element 21, the stability of the first heating element 21 can be improved.

[0040] As a preferred option, refer to Figure 2 , Figure 10 and Figure 11 The outer wall of the support sleeve 6 is provided with multiple slots 60, which are spaced apart circumferentially along the support sleeve 6. The inner wall of the connecting sleeve 14 is provided with multiple buckles 141, which correspond one-to-one with the slots 60. Each buckle 141 is engaged in the slot 60 to fix the support sleeve 6 onto the connecting sleeve 14. Therefore, this structural connection between the support sleeve 6 and the connecting sleeve 14 facilitates the removal of the support sleeve 6 from the connecting sleeve 14. Alternatively, the support sleeve 6 can also be made of heat-insulating material.

[0041] As a preferred option, refer to Figure 1 An indicator light 5 is provided on the blocking part 140 near the handle 1. The indicator light 5 is electrically connected to the control unit 4 inside the handle 1. The indicator light 5 is used to indicate whether the first heating element 21 is in working state, so that the user can know in real time whether the direct-drive module 2 is in working state.

[0042] As a preferred option, refer to Figure 1 , Figure 3 and Figure 4 The hair curling module 3 is located inside the main unit housing. The main unit housing has a through groove 142 along its own axis that passes through the open end of the connecting sleeve 14. The through groove 142 is connected to the hair inlet channel 301 on the hair curling module 3, so that hair can enter the hair inlet channel 301 of the hair curling module 3 from the position of the through groove 142, thus avoiding the inability to achieve the hair curling function because the hair curling module 3 is located inside the main unit housing.

[0043] In summary, the curling module 3 is located inside the main unit casing, while the straightening module 2 is located outside the main unit casing. The curling module 3 and the straightening module 2 operate independently without interfering with each other. For example, when the straightening module 2 is working, the curling module 3 is in standby or idle state, and there will be no structural interference or heat crosstalk between the two, ensuring the integrity of their respective functions. In addition, the curling module 3 and the straightening module 2 usually have different operating temperature requirements (straightening usually requires a higher temperature). By physically separating the curling module 3 and the straightening module 2 and controlling them independently, heat conduction between them can be avoided, ensuring the stability and accuracy of their respective temperature control.

[0044] As a preferred option, refer to Figure 3 , Figure 4 , Figure 5 and Figure 12 The hair curling module 3 includes a curling sleeve 30, a second heating element 31, and a driving mechanism. The second heating element 31 has a cylindrical structure for easy hair winding. The second heating element 31 is fixed to a heat insulation rod 7 inside the handle 1, which prevents heat from the second heating element 31 from being transferred to the handle 1. The second heating element 31 is located inside the curling sleeve 30, and the curling sleeve 30 can rotate relative to the second heating element 31, forming a heating channel between the second heating element 31 and the curling sleeve 30. The driving mechanism is located inside the handle 1 and is drivenly connected to the first end of the curling sleeve 30 located in the connecting sleeve 14. The driving mechanism is used to drive the curling sleeve 30 to rotate around the second heating element 31. The curling sleeve 30 has the aforementioned hair inlet channel 301, which extends along the axial direction of the curling sleeve 30 and passes through the second end of the curling sleeve 30. Therefore, when curling hair using the hair curling module 3, the user takes a strand of hair and inserts it through the hair inlet channel 301. Since the hair inlet channel 301 is open, the hair can be easily placed inside without winding. At this time, the hair curling sleeve 30 is driven to rotate by the drive mechanism. When the hair curling sleeve 30 rotates, the heating channel formed between the inner wall of the hair curling sleeve 30 and the second heating element 31 will grab the hair. Since one end of the hair is held by the user and the other end is placed into the hair inlet channel 301, the rotation of the hair curling sleeve 30 will automatically and evenly wrap the hair around the second heating element 31, that is, the hair is wrapped in the heating channel. After being wrapped, the hair is close to the heating channel and is heated and shaped by the heat of the second heating element 31. After heating is completed, the drive mechanism stops or reverses, and the user removes the hair from the heating channel to obtain the formed elastic curls. Since the second heating element 31 is located inside the curling iron 30 and forms a heating channel between it and the curling iron 30, it means that after the hair is rolled in, it is actually located in the heating channel (the interlayer between the second heating element 31 and the curling iron 30). This makes the heating area of ​​the hair in the heating channel large and uniform. Compared with traditional curling irons that rely on the barrel wall for heat transfer on one side, the thermal efficiency is higher and the styling is faster.

[0045] In addition, since the user mainly comes into contact with the outer wall of the curling sleeve 30, while the second heating element 31 is located inside the curling sleeve 30, as long as the curling sleeve 30 is made of a high-temperature resistant and heat-insulating material (or the curling sleeve 30 is provided with a heat-insulating coating), it can effectively prevent the user from accidentally touching the second heating element 31 during use and causing burns.

[0046] As a preferred option, refer to Figures 3-5 The curling module 3 also includes a cap 32, which is located at the end of the second heating element 31 facing away from the driving mechanism. The cap 32 has a hair inlet groove 320 and a hair inlet 321. The hair inlet groove 320 is connected to the hair inlet channel 301, and the hair inlet 321 is opposite to the hair inlet groove 320. During curling, the user inserts a strand of hair (hair bundle) through the hair inlet 321. After entering through the hair inlet 321, the hair bundle naturally slides into or is guided into the hair inlet groove 320. The hair inlet groove 320 acts as a guide, ensuring that the hair is guided to the correct path. Because the hair inlet groove 320 is connected to the hair inlet channel 301 on the curling cap 30, the hair bundle enters the hair inlet channel 301 under the guidance of the hair inlet groove 320. Therefore, the cap 32 mainly serves to guide and position the hair, ensuring that the hair can accurately and smoothly enter the hair inlet channel 301 of the curling cap 30 from the outside.

[0047] As a preferred option, refer to Figure 12 and Figure 13 The driving mechanism includes a driving unit 33, an internal gear 34, and an external gear 35. The output end of the driving unit 33 is connected to the internal gear 34. The driving unit 33 is a driving motor, fixed on the heat insulation rod 7. The output shaft of the driving motor can rotate in both directions. The driving unit 33 drives the internal gear 34 to rotate around the axis of the curling sleeve 30. The external gear 35 is located on the periphery of the heat insulation rod 7 and is rotatably mounted on the heat insulation rod 7 via bearings, allowing the external gear 35 to rotate relative to the heat insulation rod 7. The external gear 35 meshes with the internal gear 34 for transmission, and the curling sleeve 30 is fixed on the external gear 35. Therefore, the driving motor drives the internal gear 34 to rotate, which in turn drives the external gear 35 to rotate. Since the external gear 35 is fixedly connected to the curling sleeve 30, the curling sleeve 30 rotates synchronously with the external gear 35. In addition, since the drive motor is fixed on the heat insulation rod 7, and the second heating element 31 is also fixed on the heat insulation rod 7, the heat generated by the second heating element 31 during operation is insulated by the heat insulation rod 7, which prevents the drive motor from overheating and being damaged or its performance from degrading, thus extending the service life of the drive motor.

[0048] It is worth noting that the heat insulation rod 7 passes through the external gear 35 and is connected and fixed to the second heating element 31, avoiding the heat insulation rod 7 and the external gear 35 being arranged side by side, making reasonable use of the limited space inside the handle 1, and resulting in a compact structure.

[0049] As a preferred option, refer to Figure 12 and Figure 13 The control unit 4 is electrically connected to a positioning sensor 40, which is used to identify whether the hair inlet channel 301 has rotated to the position of the corresponding through slot 142 on the connecting sleeve 14, thereby facilitating the entry of hair into the hair inlet channel 301. Specifically, a positioning point 350 is set on the end face of the external gear 35 near the drive unit 33. During the rotation of the external gear 35, when the positioning sensor 40 identifies the position of the positioning point 350, it can be determined that the hair inlet channel 301 has rotated to the position of the corresponding through slot 142.

[0050] Working principle of the invention: When straightening hair, the user holds handle 1 and turns on the power switch to power on the hair styling tool. At this time, the straightening button 11 is activated, and indicator light 5 on the straightening module 2 is lit. The hair is then pulled through the comb section. During this process, the double-sided heating within the comb groove 223 heats both sides of the hair simultaneously, and the guiding action of the comb teeth 222 keeps the hair flat and straight, thus achieving a straightening effect. When curling hair, the hair is inserted through the hair inlet 321. After entering through the hair inlet 321, the hair naturally slides into or is guided into the hair inlet groove 320, ensuring the hair is guided to the correct path. The hair inlet groove 320 and the hair inlet channel on the curling cap 30... Since 301 corresponds to the same point, the hair strand enters the hair inlet channel 301 under the guidance of the hair inlet slot 320. At this time, the curling button 12 is turned on. The straightening module 2 is in standby mode, and the curling module 3 is in working mode. The drive unit 33 drives the curling sleeve 30 to rotate. The rotation of the curling sleeve 30 automatically and evenly wraps the hair strand around the second heating element 31, so that the wrapped hair strand is close to the heating channel and is heated and shaped by the heat of the second heating element 31. After heating is completed, the drive unit 33 stops or reverses (the forward and reverse rotation of the drive unit 33 is controlled by the rotation button 13). The user removes the hair strand from the heating channel to obtain the formed elastic curls.

[0051] Example 2 The difference between this embodiment and Embodiment 1 is that the positions of the straightening module 2 and the curling module 3 are different. In this embodiment, the straightening module 2 and the curling module 3 are arranged in parallel, making the overall thickness of the hair styling tool more uniform and eliminating protruding "corners," making it easier to put into a storage bag, drawer, or suitcase, thus facilitating storage.

[0052] The above description is merely a preferred embodiment of the present invention and does not limit the patent scope of the present invention. Any equivalent structural or procedural transformations made based on the content of the present invention's specification and drawings, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of the present invention.

Claims

1. A two-in-one hair straightener and curler, comprising a handle (1), a curling module (3), and a straightening module (2); characterized in that, The curling module (3) and the straightening module (2) are independently located at one end of the handle (1). The curling module (3) and the straightening module (2) are separated by the radial direction of the handle (1), so that the straightening module (2) is located on one side of the curling module (3).

2. The hair straightener and curler combo according to claim 1, characterized in that, The straightening module (2) and the curling module (3) are set at an angle.

3. The hair straightener and curler combo according to claim 1, characterized in that, The straightening module (2) and the curling module (3) are arranged in parallel.

4. The hair straightener and curler combo according to claim 1, characterized in that, A connecting sleeve (14) is provided on one end of the handle (1), and the hair straightening module (2) is provided on the outer wall of the connecting sleeve (14).

5. The hair straightener and curler combo according to claim 4, characterized in that, The hair straightening module (2) includes a first heating element (21) and a hair comb (22). The first heating element (21) is disposed on the connecting sleeve (14). The hair comb (22) includes a comb tooth portion (221). The first heating element (21) has a heating tooth portion (211) adapted to the shape of the comb tooth portion (221). The comb tooth portion (221) is sleeved on the heating tooth portion (211) of the first heating element (21).

6. The hair straightener and curler combo according to claim 5, characterized in that, The hair straightening module (2) also includes a heat insulation seat (20), which is embedded in the outer wall of the connecting sleeve (14). The first heating element (21) is disposed on the connecting sleeve (14) through the heat insulation seat (20). The hair comb (22) also includes a hair comb body (220), which is connected and fixed to the comb teeth (221). The comb teeth (221) are disposed on the hair comb body (220). The shape of the hair comb body (220) is adapted to the shape of the heat insulation seat (20). The hair comb body (220) is sleeved on the heat insulation seat (20).

7. The hair straightener and curler combo according to claim 4 or 5, characterized in that, The bottom of the first heating element (21) is fixed with a connecting part (215) at least one end, and a support sleeve (6) is fixed inside the connecting sleeve (14). The connecting part (215) is connected and fixed to the support sleeve (6).

8. The hair straightener and curler combo according to claim 4, characterized in that, The end of the connecting sleeve (14) facing away from the handle (1) is an open end. The handle (1) and the connecting sleeve (14) are connected to form the main body shell. The hair curling module (3) is located inside the main body shell. The main body shell has a through groove (142) that passes through the open end along its own axis. The through groove (142) is correspondingly connected to the hair inlet channel (301) on the hair curling module (3).

9. The hair straightener and curler combo according to claim 8, characterized in that, The curling module (3) includes a curling sleeve (30), a second heating element (31), and a driving mechanism. The second heating element (31) is located inside the curling sleeve (30) and a heating channel is formed between them. The driving mechanism is located inside the handle (1) and is driven to connect to the first end of the curling sleeve (30) located in the connecting sleeve (14). The driving mechanism is used to drive the curling sleeve (30) to rotate around the second heating element (31). The curling sleeve (30) has a hair inlet channel (301) which extends along the axial direction of the curling sleeve (30) and passes through the second end of the curling sleeve (30).

10. The hair straightener and curler combo according to claim 9, characterized in that, The curling module (3) also includes a cap (32), which is located at one end of the second heating element (31) facing away from the driving mechanism. The cap (32) is provided with a hair inlet groove (320) corresponding to and communicating with the hair inlet channel (301) and a hair inlet (321) opposite to the hair inlet groove (320).

11. The hair straightener and curler combo according to claim 9 or 10, characterized in that, The driving mechanism includes a driving unit (33), an internal gear (34), and an external gear (35). The output end of the driving unit (33) is driven to connect with the internal gear (34). The driving unit (33) is used to drive the internal gear (34) to rotate around the axis of the curling sleeve (30). The external gear (35) is rotatably disposed in the handle (1) and meshes with the internal gear (34) for transmission. The curling sleeve (30) is fixed on the external gear (35).

12. The hair straightener and curler combo according to claim 1, characterized in that, It also includes a control unit (4), which is located inside the handle (1). When the curling module (3) and the straightening module (2) are simultaneously held on the handle (1), the control unit (4) controls the curling module (3) to perform the curling function and / or the straightening module (2) to perform the straightening function.

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