A hair styling device

Abstract

The utility model belongs to the field of hairdressing tool technology, especially the hairdressing device, including handle, hairdressing department and be equipped with the rotating structure in the handle inside, rotating structure includes driving part, pivot, first bearing and second bearing, the output end of driving part connects pivot bottom, the outer periphery of pivot is equipped with first bearing, second bearing in the interval sleeve along the axial direction, the top of pivot is equipped with the mounting portion for installing hairdressing department, and hairdressing department includes two opposite clamping arms, and the opposite side of two clamping arms is equipped with a heat conduction plane respectively, and the heat conduction plane forms heating gap between two, and heating gap penetrates hairdressing department along the direction of being away from handle, and the inside of two clamping arms is equipped with heating assembly. When curling, the hair is clamped in the heating gap, and the driving part drives the pivot and hairdressing department to rotate around the pivot axis, realizes the automatic winding of hair, and improves the efficiency. Double bearing structure prevents the pivot from deviating, reduces the friction and wear of pivot, prolongs the service life of rotating structure and hairdressing device.

Description

Technical Field

[0001] This utility model belongs to the field of hair styling tools technology, and in particular relates to a hair styling device. Background Technology

[0002] Traditional hair styling tools include straighteners and curling irons. Straighteners are electronic devices used to straighten hair, while curling irons are handheld electronic devices used to curl hair. These two types of handheld devices generally only have a single straightening or curling function. With the increasing demand from consumers for convenient and multifunctional hair styling tools, hair straighteners that can also curl hair have appeared on the market.

[0003] Chinese patent document CN220631346U discloses a hair curler with a rotating handle, comprising: a hair curler body and a rotating handle sleeved on the hair curler body, the hair curler body rotating around the rotating handle. By sleeved with the rotating handle, the hair curler body can rotate around the rotating handle. During use, only one hand needs to hold the rotating handle, clamp the hair, and the other hand needs to hold the hair curler body and twist and rotate it. In the aforementioned patent document, when curling hair, one hand needs to hold the rotating handle and the other hand needs to hold the gripper on the top of the curler body. The gripper needs to be manually twisted to rotate the curler body and wrap it around the hair. This rotation process requires the cooperation of both hands, which is relatively inconvenient and results in low curling efficiency. Utility Model Content

[0004] The purpose of this utility model is to provide a hair styling tool that solves the problem that existing hair styling tools require both hands to rotate and wrap the hair around the outer surface of the tool when curling hair, which is relatively inconvenient to operate and has low curling efficiency.

[0005] To achieve the above objectives, this utility model provides a hair styling tool, including a handle, a hair styling part, and a rotating structure disposed inside the handle. The rotating structure includes a drive component, a rotating shaft, a first bearing, and a second bearing. The output end of the drive component is connected to the bottom of the rotating shaft. The first bearing and the second bearing are axially spaced and sleeved on the outer periphery of the rotating shaft. The outer rings of the first bearing and the second bearing are fixed inside the handle. The first bearing is located above the second bearing. The top of the rotating shaft is provided with a mounting part for mounting the hair styling part. The hair styling part includes two opposing clamping arms. A heat-conducting plane is provided on the opposite side of each of the two clamping arms, and a heating gap is formed between the two heat-conducting planes. The heating gap penetrates the hair styling part in a direction away from the handle. A heating element is disposed inside each of the two clamping arms.

[0006] Furthermore, it also includes a conductive structure, which comprises a circuit board, multiple electrode rings, and multiple conductive sheets. The circuit board is disposed inside the handle and located on one side of the rotating structure. The circuit board is electrically connected to the conductive sheets. A radially extending support is provided on the outer periphery of the rotating shaft. Multiple electrode rings are spaced along the axis of the rotating shaft and sleeved on the support. Each conductive sheet elastically abuts against the outer surface of a corresponding electrode ring. The electrode rings are electrically connected to the heating element. The conductive structure is located between the first bearing and the second bearing.

[0007] Furthermore, it also includes multiple insulating rings, which are alternately sleeved on the support column along with the electrode rings, and the inner sidewall of the insulating rings is provided with solder joints.

[0008] Furthermore, it also includes a positioning component. The bottom of the rotating shaft is provided with a slot, and the output end of the drive component is provided with a support ring. The center of the support ring is provided with a protrusion that matches the slot. The protrusion is inserted into the slot, and the support ring is supported at the bottom end of the slot. An inwardly recessed annular groove is provided between the area where the second bearing is sleeved on the rotating shaft and the top end of the slot. The positioning component is fixed inside the handle, and its bottom is provided with an arc-shaped clamping block that engages with the annular groove. The middle is recessed inward to form a positioning cavity. The positioning cavity is used to position the outer ring of the second bearing axially and circumferentially.

[0009] Furthermore, the outer diameter of the area where the conductive structure is sleeved on the rotating shaft is larger than the outer diameter of the area where the second bearing is sleeved, and there is a clearance area between the area where the conductive structure is sleeved and the area where the second bearing is sleeved to avoid the positioning member, and there is a gap between the inner wall surface of the arc-shaped clamping block and the outer wall surface of the annular groove.

[0010] Furthermore, the handle has an air inlet on the side away from the hair styling part, and a fan assembly and a limiting ring are provided inside it. The fan assembly is located between the air inlet and the rotating structure. The limiting ring has a limiting hole at its center. The limiting ring is fitted onto the outer ring of the first bearing through the limiting hole to radially limit the first bearing. There are multiple air outlets with vertically connected pipes between the outer ring of the limiting ring and the limiting hole. The outer surfaces of the two clamping arms are provided with multiple air ducts circumferentially. Each air duct extends from the end of the clamping arm near the handle to the end away from the handle. The multiple air outlets are directly opposite the bottom end of the hair styling part. When the fan assembly is working, the airflow flows sequentially through the handle, the air outlets, and the multiple air ducts.

[0011] Furthermore, the outer surface of the clamping arm is arc-shaped and recessed inward to form multiple spaced air ducts, with baffles between adjacent air ducts.

[0012] Furthermore, the heating component includes a heat-conducting pressure plate, a heating block, a spring, and a heat insulation component. The heat insulation component is elastically connected to the inner side of the clamping arm via the spring and together with the clamping arm forms a heat insulation cavity. The heat-conducting pressure plate is located on the side of the heat insulation component away from the spring and partially extends out of the clamping arm to form a heat-conducting plane. The heating block is located inside the heat-conducting pressure plate.

[0013] Furthermore, the bottom sides of the two clamping arms are respectively provided with transversely through and aligned connecting holes, and locking bolts are passed through the two connecting holes to lock the two clamping arms together.

[0014] The hair styling device provided in this embodiment of the present invention has at least the following technical effects: Because the outer circumference of the rotating shaft is fitted with a first bearing and a second bearing respectively, and both bearings are fixed inside the hair styling device, the first bearing and the second bearing work together to provide stable support and limit for the rotating shaft, ensuring the stability of the shaft axis and accurate positioning.

[0015] When a user curls hair, the hair is placed within the heating gap for clamping and heating. The drive mechanism is activated, causing the rotating shaft to rotate stably around its own axis. This, in turn, causes the hair styling unit to rotate smoothly around the shaft's axis, automatically wrapping the hair around the outer surface of the styling unit. Operation is possible with just one hand holding the handle, improving efficiency. Because the rotating shaft is connected by two bearings, the friction is low, effectively reducing wear on parts. The double-bearing structure prevents the shaft from shifting or wobbling, ensuring the styling unit is stably positioned on the top side of the shaft. This reduces friction and wear between the shaft and surrounding structures, resulting in minimal operating noise and extending the lifespan of the rotating structure and the hair styling tool. Attached Figure Description

[0016] To more clearly illustrate the technical solutions in the embodiments of this utility model, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0017] Figure 1 This is a schematic diagram of the structure of the hair styling device provided in an embodiment of the present utility model.

[0018] Figure 2 A cross-sectional view of the hair styling device provided in an embodiment of this utility model.

[0019] Figure 3 A vertical sectional view of the hair styling device provided in an embodiment of this utility model.

[0020] Figure 4 This is a partial structural diagram of the hair styling device provided in an embodiment of the present utility model.

[0021] Figure 5 The diagram shows the rotating and conductive structures of the hair styling device provided in this embodiment of the invention.

[0022] Figure 6 The diagram shows the rotating structure and the limiting ring structure of the hair styling device provided in the embodiment of this utility model.

[0023] Figure 7 A structural diagram of the insulating ring of the hair styling device provided in this embodiment of the utility model.

[0024] Figure 8 A structural diagram of the rotating shaft of the hair styling device provided in this embodiment of the utility model.

[0025] Figure 9 A structural diagram of the driving component of the hair styling device provided in an embodiment of this utility model.

[0026] Figure 10 A structural diagram of the positioning component of the hair styling device provided in an embodiment of this utility model.

[0027] In the diagram, 100 is the handle, 110 is the positioning component, 111 is the arc-shaped clamping block, 112 is the positioning cavity, 120 is the air inlet, 130 is the fan assembly, 140 is the limiting ring, and 141 is the air outlet. 200. Hair styling section; 210. Clamping arm; 211. Air duct; 212. Baffle; 213. Connecting hole; 220. Heat-conducting surface; 221. Heating gap; 230. Heating element; 231. Heat-conducting pressure plate; 232. Heating block; 233. Heat insulation component; 234. Spring. 300. Rotating structure; 310. Driving component; 311. Support ring; 312. Protrusion; 320. Shaft; 321. Mounting part; 322. Support column; 323. Slot; 324. Annular groove; 325. Clearance area; 330. First bearing; 340. Second bearing. 400. Conductive structure; 410. Circuit board; 420. Electrode ring; 430. Conductive sheet; 440. Insulating ring; 441. Solder joint. Detailed Implementation

[0028] The embodiments of this utility model are described in detail below. Examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain the embodiments of this utility model, and should not be construed as limiting the utility model.

[0029] In the description of the embodiments of this utility model, it should be understood that the terms "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings. They are only for the convenience of describing the embodiments of 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.

[0030] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of embodiments of this utility model, "a plurality of" means two or more, unless otherwise explicitly specified.

[0031] In this embodiment of the invention, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; 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; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this embodiment of the invention according to the specific circumstances.

[0032] In one embodiment of the hair styling tool of this utility model, please refer to... Figures 1 to 10 A hair styling device includes a handle 100, a hair styling part 200, and a rotating structure 300 disposed inside the handle. The rotating structure 300 includes a drive member 310, a rotating shaft 320, a first bearing 330, and a second bearing 340. The output end of the drive member 310 is connected to the bottom of the rotating shaft 320. The first bearing 330 and the second bearing 340 are axially spaced around the outer periphery of the rotating shaft 320. The outer rings of the first bearing 330 and the second bearing 340 are fixed inside the handle 100. The first bearing 330 is located above the second bearing 340. The top of the rotating shaft 320 is provided with a mounting part 321 for mounting the hair styling part. The hair styling part 200 includes two opposing clamping arms 210. A heat-conducting plane 220 is provided on the opposite side of the two clamping arms 210. A heating gap 221 is formed between the two heat-conducting planes 220. The heating gap 221 penetrates the hair styling part 200 in a direction away from the handle 100. A heating element 230 is provided inside each of the two clamping arms 210.

[0033] Specifically, since the outer periphery of the rotating shaft 320 is respectively fitted with a first bearing 330 and a second bearing 340, both bearings are fixed inside the hair styling device. The first bearing 330 and the second bearing 340 cooperate to provide stable support and limit for the rotating shaft 320, ensuring the stability of the axis of the rotating shaft 320 and accurate positioning.

[0034] When a user curls hair, the hair is placed in the heating gap 221 for clamping and heating. The drive unit 310 is activated, driving the rotating shaft 320 to rotate stably around its own axis. This causes the hair styling unit 200 to rotate smoothly around the axis of the rotating shaft 320, automatically wrapping the hair around the outer surface of the hair styling unit 200. Operation is possible with just one hand holding the handle, improving efficiency. Because the rotating shaft 320 is connected by two bearings, the friction is low, effectively reducing wear on parts. The double-bearing structure prevents the rotating shaft 320 from shifting or wobbling, ensuring the hair styling unit 200 is securely positioned on the top side of the rotating shaft 320. This reduces friction and wear between the rotating shaft 320 and surrounding structures, resulting in minimal operating noise and extending the lifespan of the rotating structure 300 and the hair styling device.

[0035] Please refer to Figure 2 and Figure 3 The bottom sides of the two clamping arms 210 are respectively provided with transversely through and aligned connecting holes 213. Locking bolts are passed through the two connecting holes 213 to lock the two clamping arms 210 together. The heating component 230 includes a heat-conducting pressure plate 231, a heating block 232, a spring 234 and a heat insulation component 233. The heat insulation component 233 is elastically connected to the inner side of the clamping arm 210 by the spring 234 and together with the clamping arm 210, it forms a heat insulation cavity. The heat-conducting pressure plate 231 is located on the side of the heat insulation component 233 away from the spring 234 and partially extends out of the clamping arm 210 to form a heat-conducting plane 220. The heating block 232 is located inside the heat-conducting pressure plate 231.

[0036] Specifically, the two clamping arms 210 are securely connected by locking bolts passing through aligned connecting holes 213. The bottom of the hair styling unit 200 is fixed to the mounting portion 321 of the rotating shaft, ensuring the stability of the overall structure. Each clamping arm 210 has a downwardly extending mounting block on its adjacent side at the bottom, and the mounting portion 321 of the rotating shaft has a corresponding mounting groove. After the two mounting blocks are fitted together, they are inserted into the mounting groove.

[0037] During operation, the heating element 232 generates heat and conducts it to the heat-conducting pressure plate 231, creating a heating gap 221 between the heat-conducting surfaces 220 of the two pressure plates. After the user places their hair into this gap 221, they push the heat-conducting pressure plate 231 towards the corresponding clamping arm 210, compressing the spring 234. Under the spring force, the heat-conducting surface 220 remains in close contact with the hair, ensuring even heating and achieving straight or curly hair. After heating is complete, the hair is removed, and the heat-conducting pressure plates 231 move towards each other under the restoring force of the spring 234, returning to the initial heating gap 221.

[0038] Because a heat-insulating component 233 is provided between the heat-conducting pressure plate 231 and the clamping arm 210, the heat-insulating component 233 and the clamping arm 210 together form a heat-insulating cavity, which can effectively block the heat transfer from the heating block 232 to the clamping arm 210, preventing the external temperature of the clamping arm 210 from becoming too high and preventing burns to the user. At the same time, this design concentrates heat conduction to the heat-conducting pressure plate 231, reduces heat loss, and accelerates the heating rate of the heat-conducting surface 220, thereby improving hair styling efficiency.

[0039] Please refer to Figure 4 and Figure 5 It also includes a conductive structure 400, which includes a circuit board 410, multiple electrode rings 420 and multiple conductive sheets 430. The circuit board 410 is located inside the handle 100 and on one side of the rotating structure 300. The circuit board 410 is electrically connected to the conductive sheets 430. A radially extending support column 322 is provided on the outer periphery of the rotating shaft 320. Multiple electrode rings 420 are spaced along the axis of the rotating shaft 320 and sleeved on the support column 322. Each conductive sheet 430 elastically abuts against the outer surface of an electrode ring 420. The electrode rings 420 are electrically connected to the heating element 230. The conductive structure 400 is located between the first bearing 330 and the second bearing 340.

[0040] Specifically, the circuit board 410 is fixed inside the handle 100, and the conductive sheet 430 is electrically connected to and fixed on the circuit board 410. Each conductive sheet 430 elastically abuts against the outer surface of the corresponding electrode ring 420. The number of electrode rings 420 and conductive sheets 430 is the same to form a stable connecting conductor. The electrode rings 420 are spaced on the support column 322 of the rotating shaft and electrically connected to the heating element 230 of the hair styling section. When the drive member 310 drives the rotating shaft 320 to rotate around its central axis, the multiple electrode rings 420 and the hair styling section 200 rotate synchronously with the rotating shaft. This structure ensures that during rotation, whether clockwise or counterclockwise, the conductive sheet 430 always maintains contact with the electrode ring 420, achieving continuous power supply and making the electrical connection between the electrode ring 420 and the heating element 230 stable and reliable. Furthermore, the electrode ring 420 is fitted onto the support column 322, and its inner ring fits tightly with the support column 322 to prevent relative rotation and ensure connection stability.

[0041] For further details, please refer to... Figure 7 It also includes multiple insulating rings 440, which are alternately fitted onto the support column 322 along with the electrode rings 420. The inner wall of the insulating ring 440 has solder joints 441. Specifically, the insulating rings 440 and electrode rings 420 are alternately fitted onto the support column 322. The insulating rings 440 are used to isolate adjacent electrode rings 420, preventing them from contacting each other. Adjacent insulating rings 440 are fixed to the support column 322 by solder joints 441, which can axially limit the electrode rings 420 located between adjacent insulating rings, improving the assembly stability of the electrode rings 420 on the rotating shaft 320. Simultaneously, the solder joints 441 within the insulating rings can also be used to simulate the dimensions of wire welding between the electrode rings 420 and the heating element 230, facilitating design and process verification.

[0042] For further details, please refer to... Figure 5 , Figure 9 and Figure 10 It also includes a positioning component 110, a slot 323 at the bottom of the rotating shaft 320, a support ring 311 at the output end of the drive component, a protrusion 312 at the center of the support ring 311 that matches the slot 323, the protrusion 312 being inserted into the slot 323, and the support ring 311 being supported at the bottom of the slot 323; an inwardly recessed annular groove 324 is provided between the area of ​​the rotating shaft 320 where the second bearing 340 is fitted and the top of the slot 323; the positioning component 110 is fixed inside the handle 100, and its bottom is provided with an arc-shaped clamping block 111 that engages with the annular groove 324, and its middle is recessed inward to form a positioning cavity 112, which is used to position the outer ring of the second bearing 340 axially and circumferentially.

[0043] Specifically, a stable connection between the drive component 310 and the rotating shaft 320 is achieved by inserting the protrusion 312 into the slot 323 and supporting the bottom of the slot 323 with the support ring 311. The positioning component 110 is fixed inside the handle 100, and the arc-shaped clamping block 111 at the bottom engages with the annular groove 324, effectively preventing the rotating shaft 320 from moving up and down and ensuring the connection stability between the rotating shaft 320 and the output end of the drive component 310. The positioning cavity 112 axially positions the second bearing 340, effectively preventing its outer ring from rotating; through axial limiting, the second bearing 340 is prevented from shifting up and down, thus achieving reliable fixation of the outer ring of the second bearing 340.

[0044] For further details, please refer to... Figure 5The outer diameter of the area on the rotating shaft 320 where the conductive structure 400 is mounted is larger than the outer diameter of the area where the second bearing 340 is mounted. A clearance area 325 of the clearance positioning member 110 is provided between the area where the conductive structure 400 is mounted and the area where the second bearing 340 is mounted. There is a gap between the inner wall of the arc-shaped clamping block 111 and the outer wall of the annular groove 324. Specifically, the rotating shaft 320, from top to bottom, includes a mounting part 321, a mounting area for the first bearing 330, a mounting area for the conductive structure 400, a mounting area for the second bearing 340, and a slot 323. The outer diameters of each section decrease sequentially, forming a stepped shaft structure, facilitating the sequential assembly of the first bearing 330, the insulating ring 440, the electrode ring 420, and the second bearing 340. A certain gap is reserved between the arc-shaped clamping block 111 and the annular groove 324 to prevent friction between the rotating shaft 320 and the arc-shaped clamping block 111 during rotation, ensuring smooth operation. In addition, the setting of the avoidance zone 325 effectively prevents the rotating shaft 320 from interfering with the positioning member 110 when rotating, further ensuring the reliability of operation.

[0045] Please refer to Figure 4 An air inlet 120 is provided on the side of the handle 100 away from the hair styling part 200. Inside the inlet 120 is a fan assembly 130 and a limiting ring 140. The fan assembly 130 is located between the air inlet 120 and the rotating structure 300. A limiting hole is provided in the center of the limiting ring 140, and the limiting ring 140 is fitted onto the outer ring of the first bearing 330 through the limiting hole to radially limit the first bearing 330. Multiple vertically penetrating air outlets 11 are provided between the outer ring of the limiting ring 140 and the limiting hole. 41; The outer surfaces of the two clamping arms 210 are arc-shaped and circumferentially concave to form multiple spaced air ducts 211, with baffles 212 between adjacent air ducts 211; Each air duct 211 extends from the end of the clamping arm 210 near the handle 100 to the end away from the handle 100; Multiple air outlets 141 face the bottom of the hair styling section, and the airflow generated when the fan assembly 130 is working flows sequentially through the handle 100, the multiple air outlets 141 and the multiple air ducts 211.

[0046] Specifically, the user places their hair in the heating gap 221, and the rotating structure 300 drives the hair styling section 200 to rotate, causing the hair to wrap around its outer surface. Because the fan assembly 130 is located inside the handle 100, the handle 100 has an air inlet 120 and an air outlet 141 at its bottom and top, respectively, forming a straight airflow channel. The two clamping arms 210 have multiple spaced air ducts 211 circumferentially arranged. After the fan assembly 130 is activated, external air is drawn in through the air inlet 120, flows through the inside of the handle 100, and then enters the multiple air ducts 211 through the air outlet 141. After curling, the hair is pulled down towards the ends, allowing the hair in the heating gap 221 to be cooled evenly by the airflow, quickly setting the style and achieving a fast curling effect. This also reduces the outer temperature of the hair styling tool, preventing burns and improving the user experience. A baffle 212 is provided between adjacent air ducts 211, and every two baffles 212 form an independent air duct 211, which can effectively converge the airflow and guide the airflow to the hair in a ring through the opening on the outside of the air duct 211. This avoids the airflow from escaping due to the opening of the air duct 211 being too large, and significantly improves the styling efficiency of curl cooling. Furthermore, as the hair styling section 200 rotates with the pivot 320, the airflow in the air duct 211 can still achieve 360° all-round uniform air delivery, ensuring stable coverage during the cooling process.

[0047] Furthermore, the limiting hole of the limiting sleeve fits tightly with the outer ring of the first bearing 330, radially limiting the first bearing 330, ensuring the positional accuracy and rotational concentricity of the first bearing 330, and providing support for the first bearing 330 to improve stability. The first bearing 330 and the second bearing 340 work together to form the upper and lower end support structures, ensuring the concentricity of the entire rotating structure. This can significantly suppress the vibration and offset of the rotating shaft 320 and the hair styling part 200, achieving smooth and low-noise operation.

[0048] The steps for using this hair straightener are as follows: When straightening hair, place the hair close to the scalp in the heating gap 221. The springs 234 on the inner side of the two clamping arms ensure that the hair is in close contact with the heat-conducting surfaces 220 on both sides. The user pulls the hair down towards the ends to heat and straighten the hair located in the heating gap 221. The airflow from the air duct 211 flows out circumferentially, achieving cooling of the outer side of the hair straightener and cooling and styling of the heated hair, thus improving the user experience.

[0049] When curling hair, place the ends of the hair away from the scalp in the heating gap 221, then activate the rotating structure 300. The hair styling section 200 rotates and wraps the hair around the outer surface of the two clamping arms 210. The airflow from the fan assembly 130 flows into the air duct 211 through the air outlet 141 and flows circumferentially towards the wrapped hair along the baffle 212. The user pulls the hair down towards the ends, so that the hair in the heating gap 221 is cooled and shaped by the airflow, achieving quick curling.

[0050] The above are merely preferred embodiments of the present utility model and are not intended to limit the present utility model. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A hair styling tool, characterized in that, The device includes a handle, a hair styling part, and a rotating structure located inside the handle. The rotating structure includes a drive component, a rotating shaft, a first bearing, and a second bearing. The output end of the drive component is connected to the bottom of the rotating shaft. The first bearing and the second bearing are axially spaced around the outer periphery of the rotating shaft. The outer rings of the first bearing and the second bearing are fixed inside the handle. The first bearing is located above the second bearing. The top of the rotating shaft has a mounting part for mounting the hair styling part. The hair styling part includes two opposing clamping arms. A heat-conducting plane is provided on the opposite side of each clamping arm, and a heating gap is formed between the two heat-conducting planes. The heating gap extends through the hair styling part in a direction away from the handle. A heating element is provided inside each of the two clamping arms.

2. The hair styling tool according to claim 1, characterized in that: It also includes a conductive structure, which comprises a circuit board, multiple electrode rings, and multiple conductive sheets. The circuit board is disposed inside the handle and located on one side of the rotating structure. The circuit board is electrically connected to the conductive sheets. A radially extending support is provided on the outer periphery of the rotating shaft. Multiple electrode rings are spaced along the axis of the rotating shaft and sleeved on the support. Each conductive sheet elastically abuts against the outer surface of a corresponding electrode ring. The electrode rings are electrically connected to the heating element. The conductive structure is located between the first bearing and the second bearing.

3. The hair styling device according to claim 2, characterized in that: It also includes multiple insulating rings, which are alternately sleeved on the support column with electrode rings, and the inner sidewall of the insulating ring is provided with solder joints.

4. The hair styling device according to claim 2, characterized in that: It also includes a positioning component. The bottom of the rotating shaft is provided with a slot, and the output end of the drive component is provided with a support ring. The center of the support ring is provided with a protrusion that matches the slot. The protrusion is inserted into the slot, and the support ring is supported at the bottom of the slot. An inwardly recessed annular groove is provided between the area of ​​the rotating shaft where the second bearing is sleeved and the top of the slot. The positioning component is fixed inside the handle. Its bottom is provided with an arc-shaped clamping block that engages with the annular groove. The middle is recessed to form a positioning cavity. The positioning cavity is used to position the outer ring of the second bearing axially and circumferentially.

5. The hair styling device according to claim 4, characterized in that: The outer diameter of the area where the conductive structure is sleeved on the rotating shaft is larger than the outer diameter of the area where the second bearing is sleeved, and there is a clearance area between the area where the conductive structure is sleeved and the area where the second bearing is sleeved to avoid the positioning member. There is a gap between the inner wall surface of the arc-shaped clamping block and the outer wall surface of the annular groove.

6. The hair styling device according to any one of claims 1-5, characterized in that: The handle has an air inlet on the side away from the hair styling part, and a fan assembly and a limiting ring are provided inside it. The fan assembly is located between the air inlet and the rotating structure. The limiting ring has a limiting hole at its center. The limiting ring is fitted onto the outer ring of the first bearing through the limiting hole to radially limit the first bearing. There are multiple air outlets with vertically connected pipes between the outer ring of the limiting ring and the limiting hole. The outer surfaces of the two clamping arms are provided with multiple air ducts circumferentially. Each air duct extends from the end of the clamping arm near the handle to the end away from the handle. The multiple air outlets are directly opposite the bottom end of the hair styling part. When the fan assembly is working, the airflow generated flows sequentially through the handle, the air outlets, and the multiple air ducts.

7. The hair styling device according to claim 6, characterized in that: The outer surface of the clamping arm is arc-shaped and recessed inward to form multiple spaced air ducts, with baffles between adjacent air ducts.

8. The hair styling device according to any one of claims 1-5, characterized in that: The heating component includes a heat-conducting pressure plate, a heating block, a spring, and a heat insulation component. The heat insulation component is elastically connected to the inner side of the clamping arm by the spring and together with the clamping arm forms a heat insulation cavity. The heat-conducting pressure plate is located on the side of the heat insulation component away from the spring and partially extends out of the clamping arm to form a heat-conducting plane. The heating block is located inside the heat-conducting pressure plate.

9. The hair styling device according to claim 1, characterized in that: The bottom sides of the two clamping arms are respectively provided with transversely through and aligned connecting holes, and locking bolts are passed through the two connecting holes to lock the two clamping arms together.

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