Rotary hair curler

Abstract

There is a need to improve the hair curler technology so that different designs and rotation methods can provide better reliability and functionality. The invention discloses a rotary hair curler which comprises a handle, a connecting seat, an electric control device and a rotary hair curling rod. According to the technical scheme, the reliability of electric connection between the handle and the rotary curling iron can be improved.

Description

[0001] Cross - reference to related applications

[0002] This application claims the priority of Chinese Patent Application No. 202222115830.1, filed on August 11, 2022, the entire content of which is incorporated herein by reference for all purposes. Technical field

[0003] This application relates to the field of hair styling appliances, and particularly to a rotary hair curler. Background art

[0004] With the improvement of people's living standards, people's requirements for hairstyles are also increasing day by day. Therefore, various rotary hair curlers have emerged on the market to meet the usage needs of different users for different hairstyles. To facilitate user use, electric rotary hair curlers have appeared on the market. However, in current such rotary hair curlers, due to the existence of a rotating structure between the rotary curling rod and the handle, the circuit between the rotary curling rod and the electric control device in the handle is prone to poor contact. Summary of the invention

[0005] The main purpose of this application is to propose a rotary hair curler, aiming to improve the reliability of the electrical connection between the handle and the rotary curling rod.

[0006] To achieve the above object, the rotary hair curler proposed in this application includes:

[0007] A handle, including a housing and a driving motor disposed in the housing, the housing having an open end;

[0008] An electric control device, including a circuit board and a plurality of conductive sheets, the plurality of conductive sheets being electrically connected to the circuit board, and the circuit board being electrically connected to the driving motor;

[0009] A connecting seat, rotatably installed in the housing and connected to the driving motor, a plurality of conductive rings are sleeved on the connecting seat, the plurality of conductive rings are spaced apart along the extension direction of the rotation axis of the connecting seat, and each conductive sheet correspondingly abuts against the outer peripheral surface of one conductive ring, the connecting seat having a connecting end exposed outside from the open end; and

[0010] A rotary curling rod, including a heating rod and a fixing seat connected to one end of the heating rod, the fixing seat being detachably connected to the connecting end, and the heating component in the heating rod being conducted with the plurality of conductive rings through a first wiring component and a second wiring component.

[0011] Optionally, the connection seat has a connection shaft extending towards the drive motor. An insulating mounting structure is sleeved outside the connection shaft. The insulating mounting structure is connected to the output shaft of the drive motor. A plurality of mounting ring grooves are provided on the circumferential side of the insulating mounting structure. The plurality of mounting ring grooves are spaced apart along the axial direction of the connection shaft. Each conductive ring is correspondingly mounted in one of the mounting ring grooves.

[0012] Optionally, the conductive sheet includes a connection leg and two contact elastic pieces respectively arranged on opposite sides of the connection leg. The two contact elastic pieces are respectively arranged on opposite sides of the conductive ring and elastically abut against the outer peripheral surface of the conductive ring.

[0013] Optionally, the insulating mounting structure has a plurality of mounting rings. Each mounting ring includes a first section and a second section connected to each other. The outer diameter of the first section is smaller than that of the second section, so as to form a mounting ring groove on the outside of the first section. The plurality of mounting rings are sequentially distributed in the extending direction of the rotation axis of the connection seat, and the first section of each mounting ring is located on the side of its second section away from the drive motor.

[0014] Optionally, the connection end is provided with a plugging cavity. The second wiring assembly is arranged in the plugging cavity. The second wiring assembly is correspondingly connected to the plurality of conductive rings. The rotary hair curler further includes a clamping assembly. The clamping assembly includes a clamping member and a pressing member. The clamping member is movably mounted on the connection end. The clamping end of the clamping member is located in the plugging cavity. The pressing member abuts against the side of the clamping member away from the plugging cavity. The fixing seat is provided with a plugging portion and a buckling portion located on the outer peripheral side of the plugging portion. The buckling portion is provided with a clamping hole. The plugging portion is provided with a first wiring assembly. The first wiring assembly is electrically connected to the heating assembly in the rotary hair curler. When the plugging portion is plugged into the plugging cavity, the buckling portion is located in the plugging cavity. The clamping end of the clamping member is clamped in the clamping hole, and the second wiring assembly and the first wiring assembly are electrically connected.

[0015] Optionally, the rotary hair curler includes two such clamping assemblies. The two clamping assemblies are respectively arranged on opposite sides of the connection end. The rotary hair curler is correspondingly provided with the buckling portion for each clamping assembly.

[0016] Optionally, an annular shell is sleeved on the outer side of the connecting end, and an installation cavity is enclosed between the annular shell and the outer peripheral surface of the connecting end. The annular shell is provided with a clearance hole connected to the installation cavity, and the clamping piece can be movably installed in the installation cavity. The pressing piece abuts against the side of the clamping piece away from the connecting seat and is exposed to the outside through the clearance hole. The connecting seat is provided with a clearance opening connecting the plug-in cavity and the installation cavity, and the clamping end of the clamping piece extends into the plug-in cavity through the clearance opening.

[0017] Optionally, the clamping assembly further includes an elastic member, and the elastic member is compressed and abutted between the clamping member and the connecting seat.

[0018] Optionally, the clamping member further has a rotating end, the rotating end is opposite to the clamping end, the rotating end is rotatably installed in the installation cavity, and the pressing member abuts between the rotating end and the clamping end.

[0019] Optionally, the pressing member is provided with a limiting buckle, and the clamping member is provided with a limiting clamping hole, and the limiting buckle can be movably clamped in the limiting clamping hole.

[0020] Optionally, one of the outer side surface of the plug-in part and the cavity wall of the plug-in cavity is provided with an anti-foolproof rib, and the other is provided with an anti-foolproof groove, and when the plug-in part is plugged into the plug-in cavity, the anti-foolproof rib is plugged into the anti-foolproof groove.

[0021] Optionally, the rotary curling iron comprises a plurality of the rotary curling rods, and the plurality of the rotary curling rods are selectively mounted on the connecting end.

[0022] The technical solution of the present application is to set a rotatable connection seat on the handle so that the fixed seat and the connection end can be detachably connected. Users can purchase multiple types of rotary curling irons, so that they can use the same handle to assemble different types of rotary curling irons to achieve multiple curls. In this way, users do not need to buy multiple rotary curling irons, which is convenient for users to use. In addition, multiple conductive rings are sleeved on the connection seat, and multiple conductive sheets are provided on the circuit board in the handle, so that each conductive sheet is correspondingly abutted against the outer peripheral surface of a conductive ring. In this way, when the driving motor drives the connection seat to rotate, the conductive sheet can always contact the outer peripheral surface of the conductive ring. In this way, while driving the rotary curling iron to rotate, the electrical connection reliability between the electric control device in the handle and the heating component in the rotary curling iron is high, thereby improving the electrical connection reliability between the handle and the rotary curling iron. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] To more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the following will briefly introduce the drawings required for the description of the embodiments or the prior art. Obviously, the drawings in the following description are only some embodiments of the present application. For those of ordinary skill in the art, without creative efforts, other drawings can be obtained based on the structures shown in these drawings.

[0024] Figure 1 Structural schematic diagram of an embodiment of the rotary hair curler of the present application;

[0025] Figure 2 For Figure 1 Cross-sectional view of the rotary hair curling rod in

[0026] Figure 3 For Figure 2 Enlarged view of part A in

[0027] Figure 4 For Figure 3 Structural schematic diagram of the connection seat after removing the rotary hair curling rod in

[0028] Figure 5 For Figure 1 Structural schematic diagram of the handle in

[0029] Figure 6 For Figure 5 Enlarged view of part B in

[0030] Figure 7 For Figure 6 Structural schematic diagram of the clamping part and the pressing part in

[0031] Figure 8 For Figure 1 Structural schematic diagram of the rotary hair curling rod in

[0032] Figure 9 For Figure 8 Enlarged view of part C in

[0033] Figure 10 For Figure 3 Structural schematic diagram of the connection seat, the driving motor and the insulating mounting structure in

[0034] Figure 11 For Figure 10 Exploded view of the connection seat and the insulating mounting structure in

[0035] Figure 12 Exploded view of the handle and multiple rotary hair curling rods in an embodiment of the rotary hair curler of the present invention.

[0036] Explanation of the reference numerals in the drawings:

[0037] 10. Handle; 11. Housing; 12. Circuit board; 13. Conductive ring; 14. Conductive sheet; 141. Connecting pin; 142. Contact elastic piece; 15. Conductive member; 16. Driving motor; 17. Forward rotation button; 18. Reverse rotation button; 19. Power button; 20. Connecting seat; 201. Insertion cavity; 202. Arc-shaped groove; 203. Relief notch; 21. Insertion protrusion; 211. Second insertion hole; 22. Limit protrusion; 23. Anti-fooling rib; 24. First arc surface; 25. First plane; 31. Clamping member; 311. Clamping end; 312. Rotating end; 313. Limit clamping hole; 314. Rotating groove; 315. Limit groove; 32. Pressing member; 321. Limit buckle; 33. Ring-shaped outer shell; 331. Installation cavity; 332. Relief hole; 333. Limit groove; 35. Elastic member; 40. Rotary hair curler; 41. Heating rod; 42. Fixed seat; 421. Insertion part; 422. First insertion hole; 423. Second arc surface; 424. Second plane; 425. Buckling part; 426. Clamping hole; 427. Buckling part; 428. Anti-fooling groove; 51. Conductive column; 60. Insulating installation structure; 61. Installation ring; 611. First section; 612. Second section; 613. Installation ring groove; 71. Rotating shaft; 80. Clamping plate assembly; 81. Rotating seat; 82. Hair clamping plate; 83. Pressing part.

[0038] The realization of the purpose, functional features and advantages of this application will be further described with reference to the embodiments and the accompanying drawings. Detailed implementation manners

[0039] Next, the technical solutions in the embodiments of this application will be clearly and completely described with reference to the accompanying drawings in the embodiments of this application. Obviously, the described embodiments are only a part of the embodiments of this application, rather than all the embodiments. Based on the embodiments in this application, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of this application.

[0040] It should be noted that if there are directional indications (such as up, down, left, right, front, back...) involved in the embodiments of this application, the directional indications are only used to explain the relative positional relationship and movement conditions between components in a specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indications will also change accordingly.

[0041] In addition, if there are descriptions involving "first", "second", etc. in the embodiments of the present application, the descriptions of "first", "second", etc. are for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the quantity of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include at least one such feature. In addition, the meaning of "and / or" appearing throughout the text is that it includes three parallel solutions. Taking "A and / or B" as an example, it includes solution A, or solution B, or the solution where A and B are satisfied simultaneously. In addition, the technical solutions between various embodiments can be combined with each other, but it must be based on the ability of those of ordinary skill in the art to implement. When the combination of technical solutions results in contradictions or cannot be implemented, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection required by the present application.

[0042] The present application provides a rotary hair curler.

[0043] In the embodiments of the present application, as Figures 1 to 12 shown, the rotary hair curler includes a handle 10, a connecting seat 20, an electric control device, and a rotary curling rod 40. The handle 10 includes a housing 11 and a driving motor 16 disposed inside the housing 11. The housing 11 has an open end; the electric control device includes a circuit board 12 and a plurality of conductive sheets 14 connected to the circuit board 12. The circuit board 12 is electrically connected to the driving motor 16; the connecting seat 20 is rotatably installed inside the housing 11 and is connected to the driving motor 16. A plurality of conductive rings 13 are sleeved on the connecting seat 20. The plurality of conductive rings 13 are spaced apart along the extending direction of the rotation axis 71 of the connecting seat 20. Each conductive sheet 14 correspondingly abuts against the outer peripheral surface of a conductive ring 13. The connecting seat 20 has a connecting end extending out from the open end; the rotary curling rod 40 includes a heating rod 41 and a fixing seat 42 connected to one end of the heating rod 41. The fixing seat 42 is detachably connected to the connecting end, and the heating component in the heating rod 41 is electrically connected to the plurality of conductive rings 13 through a first wiring component and a second wiring component.

[0044] In this embodiment, the rotary hair curler further includes a power cord, which is installed at one end of the handle 10 away from the rotary curling rod 40 and is electrically connected to the electric control device. The fixing seat 42 is provided with a first wiring component, and the first wiring component is electrically connected to the heating structure in the heating rod 41. The electric control device includes a circuit board 12 and a second wiring component. The circuit board 12 is disposed inside the housing 11, and the second wiring component is disposed on the connecting seat 20 and is electrically connected to the circuit board 12. When the rotary curling rod 40 is installed on the connecting seat 20 through the fixing seat 42, the first wiring component and the second wiring component are correspondingly electrically connected to supply power to the heating rod 41.

[0045] Among them, the power cord is integrally connected to the handle 10, or the power cord is detachably connected to the handle 10. During use, after the rotary hair curler 40 is installed on the connecting seat 20 through the fixing seat 42, the driving motor 16 can be started to drive the connecting seat 20 to rotate, so as to drive the rotary hair curler 40 to rotate through the connecting seat 20, thereby realizing automatic hair curling. The driving motor 16 can be an inner rotor motor or an outer rotor motor. In addition, the connecting end can extend out from the opening end, or the end face of the connecting end is flush with the end face of the opening end, or the whole connecting seat 20 is located inside the housing 11, and the end face of the connecting end is spaced from the end face of the opening end.

[0046] The circuit board 12 is fixed inside the housing 11. When the driving motor 16 drives the connecting seat 20 to rotate, the slip ring 13 rotates together with the connecting seat 20, and the slip ring 13 rotates relative to the conductive sheet 14. During the rotation of the slip ring 13 relative to the conductive sheet 14, the conductive sheet 14 abuts against the outer peripheral surface of the slip ring 13. In this way, while the connecting seat 20 is rotated, a good electrical connection can be achieved between the conductive sheet 14 and the slip ring 13.

[0047] In this embodiment, the circuit board 12 is installed on one side of the connecting seat 20, and a plurality of conductive sheets 14 are all fixed on the circuit board 12. In this way, the internal circuit structure of the handle 10 can be made compact, and the assembly process of the plurality of conductive sheets 14 during the assembly of the rotary hair curler can be reduced. Of course, in other embodiments, a fixing structure is provided on one side of the connecting seat 20, a plurality of conductive sheets 14 are fixed on the fixing structure, and the plurality of conductive sheets 14 are electrically connected to the circuit board 12 through connecting wires.

[0048] The technical solution of the present application enables the fixing seat 42 and the connecting end to be detachably connected by providing a rotatable connecting seat 20 on the handle 10. Users can purchase various types of rotary hair curlers 40, so that different types of rotary hair curlers 40 can be assembled using the same handle 10 to achieve various hair curling effects. In this way, users do not need to buy multiple rotary hair curlers, which is convenient for users. Moreover, by sleeving a plurality of slip rings 13 on the connecting seat 20 and providing a plurality of conductive sheets 14 on the circuit board 12 inside the handle 10, each conductive sheet 14 correspondingly abuts against the outer peripheral surface of a slip ring 13. In this way, when the driving motor 16 drives the connecting seat 20 to rotate, the conductive sheet 14 can always contact the outer peripheral surface of the slip ring 13. In this way, while driving the rotary hair curler 40 to rotate, the electrical connection reliability between the electric control device inside the handle 10 and the heating component inside the rotary hair curler 40 can be improved, and the electrical connection reliability between the handle 10 and the rotary hair curler 40 is enhanced.

[0049] In some embodiments, the connection seat 20 has a connection shaft extending toward the drive motor 16, and an insulating mounting structure 60 is provided on the outer sleeve of the connection shaft. The insulating mounting structure 60 is connected to the output shaft of the drive motor 16, and a plurality of mounting ring 61 grooves are provided on the circumferential side of the insulating mounting structure 60. The plurality of mounting ring 61 grooves are distributed at intervals along the axial direction of the connection shaft, and each conductive ring 13 is correspondingly installed in a mounting ring 61 groove. By providing the insulating mounting structure 60 on the outer sleeve of the connection shaft and providing the mounting ring 61 groove on the insulating mounting structure 60, the conductive ring 13 can be easily positioned and installed. Of course, in other embodiments, the conductive ring 13 can also be directly sleeved on the connection shaft.

[0050] There are many ways to detach the fixing base 42 and the connecting end. For example, in one embodiment, the fixing base 42 and the connecting end are fixed by snapping. In other embodiments, the fixing base 42 and the connecting end are magnetically connected. In still other embodiments, the fixing base 42 and the connecting end are connected by a threaded structure.

[0051] In some embodiments, the connecting end is extended from the open end of the handle 10 shell 11. By extending the connecting end of the connecting seat 20 from the open end of the handle 10 shell 11, it is convenient to assemble the fixing seat 42 of the rotating curling iron 40 with the connecting end, making it convenient for users to disassemble and replace the heating rod 41.

[0052] In some embodiments, a plug-in cavity 201 is provided at the connection end, a second wiring assembly is provided in the plug-in cavity 201, and the second wiring assembly is electrically connected to the electric control device in the handle 10; the rotary curling iron also includes a snap-in assembly, the snap-in assembly includes a snap-in component 31 and a pressing component 32, the snap-in component 31 can be movably installed on the connection end, the snap-in end 311 of the snap-in component 31 is located in the plug-in cavity 201, and the pressing component 32 abuts against a side of the snap-in component 31 away from the plug-in cavity 201 and is exposed to the outside.

[0053] One end of the rotary curling iron 40 is provided with an inserting portion 421 and a buckling portion 425 located on the outer peripheral side of the inserting portion 421, the buckling portion 425 is provided with a clamping hole 426, and the inserting portion 421 is provided with a first wiring assembly, and the first wiring assembly is electrically connected to the heating assembly in the rotary curling iron 40. When the inserting portion 421 is inserted into the inserting cavity 201, the buckling portion 425 is located in the inserting cavity 201, the clamping end 311 of the clamping member 31 is clamped in the clamping hole 426, and the second wiring assembly is electrically connected to the first wiring assembly.

[0054] Specifically, on one side of the fixed seat 42 facing away from the heating rod 41, a plug-in portion 421 is formed. An insertion port is formed at the end of the handle 10 in the insertion cavity 201, and the plug-in portion 421 is inserted into the insertion cavity 201 from the insertion port. The clamping end 311 has a hook extending in a direction away from the insertion cavity 201. When the plug-in portion 421 is inserted into the insertion cavity 201, the hook portion of the clamping end 311 is clamped in the clamping hole 426 to limit the rotary curling iron 40 from moving away from the handle 10, thereby fixing the rotary curling iron 40 to the handle 10. When it is necessary to disassemble the rotary curling iron 40, by pressing down the pressing member 32, when the clamping end 311 of the clamping member 31 is separated from the clamping hole 426, the plug-in portion 421 can be pulled out of the insertion cavity 201 to achieve the disassembly of the rotary curling iron 40.

[0055] In this embodiment, the rotary curling device further includes a power cord, which is installed at one end of the handle 10 away from the rotary curling iron 40 and is electrically connected to the electric control device. The first wiring assembly is electrically connected to the heating structure in the heating rod 41. The electric control device includes a circuit board 12, the circuit board 12 is disposed in the housing 11, and the second wiring assembly is disposed on the connection seat 20 and is electrically connected to the circuit board 12. Among them, the power cord is integrally connected to the handle 10, or the power cord is detachably connected to the handle 10.

[0056] By providing an insertion cavity 201 at one end of the handle 10, the clamping end 311 provided on the handle 10 and used for clamping the rotary curling iron 40 is disposed in the insertion cavity 201. At the same time, a buckling portion 425 is provided on the outer peripheral side of the plug-in portion 421 used for being inserted into the insertion cavity 201 on the rotary curling iron 40. In this way, when the plug-in portion 421 is inserted into the insertion cavity 201, the buckling portion 425 also extends into the insertion cavity 201 and is clamped with the clamping end 311 located in the insertion cavity 201, thereby realizing the fixation of the rotary curling iron 40 and the handle 10. In this way, by means of plugging and matching the rotary curling iron 40 and then clamping with the clamping member 31, the connection area between the rotary curling iron 40 and the handle 10 can be large, the connection is more stable, and the clamping structure is convenient for the disassembly of the rotary curling iron 40. At the same time, the clamping end 311 of the clamping assembly on the handle 10 is located in the insertion cavity 201, avoiding the exposure of the clamping end 311 outside. When the handle 10 drops or the user accidentally touches the front end of the handle 10 against other objects, the clamping member 31 can be prevented from being impacted, thereby reducing the risk of damage to the clamping structure between the handle 10 and the heating rod.

[0057] In some embodiments, the clamping plate assembly 80 is rotatably mounted on the fixed seat 42, and has a clamping plate 82 extending to the side of the heating rod 41. Specifically, the clamping plate assembly 80 includes a rotating seat 81 and a clamping plate 82, the rotating seat 81 is rotatably mounted on the fixed seat 42, and has a pressing portion 83 extending in a direction away from the heating rod 41, one end of the clamping plate 82 is connected to the rotating seat 81, and the other end extends toward the end of the heating rod 41 away from the handle 10. When curling hair, the clamping plate can be opened relative to the rotating curling rod 40, and the hair end can be placed between the clamping plate and the heating rod 41 to perform the curling operation, which can also reduce the risk of hair slipping off the rotating curling rod 40 during the curling process. Optionally, the clamping plate 82 and the rotating seat 81 are separately arranged.

[0058] Of course, in other embodiments, the fixing seat 42 may be provided with a clamping tooth extending to the side of the heating rod 41, so that when curling hair, the hair end may be placed between the clamping tooth and the heating rod 41, thereby reducing the risk of hair slipping off the rotating curling rod 40 during the curling process. Alternatively, no hair clamping structure may be provided, and when in use, the hair end may be overlapped and wrapped around the heating rod 41 or the fixing seat 42 to pre-fix the hair before curling.

[0059] In some embodiments, the rotary curling iron includes two snap-fit ​​components, which are respectively arranged on opposite sides of the connection end, and the rotary curling iron 40 is provided with a snap-fit ​​portion 425 corresponding to each snap-fit ​​component. With such a configuration, the connection position between the rotary curling iron 40 and the handle 10 can be increased, the connection stability between the rotary curling iron 40 and the handle 10 can be increased, and it is convenient for the user to press two pressing members 32 at the same time to unlock. In addition, when two snap-fit ​​components are provided, it is necessary to press the two pressing members 32 so that the two snap-fit ​​members 31 are simultaneously disengaged from the snap-fit ​​portion 425, so that the plug-in portion 421 of the rotary curling iron 40 can be separated from the handle 10, thereby reducing the risk of the rotary curling iron 40 falling off due to mis-pressing the pressing member 32.

[0060] In some embodiments, an annular shell 33 is sleeved on the outer side of the connecting end, and an installation cavity 331 is enclosed between the annular shell 33 and the outer peripheral surface of the connecting end. The annular shell 33 is provided with a clearance hole 332 connected to the installation cavity 331. The clamping member 31 can be movably installed in the installation cavity 331. The pressing member 32 abuts against the side of the clamping member 31 away from the connecting seat 20 and is exposed to the outside through the clearance hole 332. The connecting seat 20 is provided with a clearance opening 203 connecting the plug-in cavity 201 and the installation cavity 331. The clamping end 311 of the clamping member 31 extends into the plug-in cavity 201 through the clearance opening 203.

[0061] Specifically, the hook of the clamping end 311 extends toward the annular housing 33 and is spaced from the inner side of the annular housing 33. When the plug-in portion 421 is plugged into the plug-in cavity 201, the clamping end 311 of the clamping member 31 is inserted into the clamping hole 426, and the hook is locked in the buckle portion 427, thereby realizing the clamping connection between the connection seat 20 and the plug-in portion 421. When the rotary curling rod 40 needs to be disassembled, the pressing member 32 is pressed down to make the clamping member 31 move toward the plug-in cavity 201. When the hook is separated from the buckle portion 427, the plug-in portion 421 can be pulled out of the plug-in cavity 201, thereby realizing the disassembly of the rotary curling rod 40. In this way, by arranging the annular shell 33 outside the connection base 20, a mounting cavity 331 is formed between the annular shell 33 and the outer side of the connection base 20 to mount the clamping member 31 and the pressing member 32, the structure of the connection base 20 can be simplified, and the connection base 20 can be set as an integrated structure to improve the structural strength of the connection base 20, thereby reducing the risk of deformation or damage of the connection base 20 during the rotation process, so that the automatic curling reliability of the rotary curler is high. In addition, the clamping end 311 of the clamping member 31 is arranged in the plug-in cavity 201 to avoid the risk of the clamping end 311 extending out of the plug-in cavity 201 and being damaged by collision, thereby improving the reliability of the clamping structure.

[0062] Of course, in other embodiments, the connection seat 20 is formed by splicing two seat bodies, that is, the two seat bodies are spliced ​​together to form the plug-in cavity 201, the installation cavity 331 and the clearance opening 203, and the splicing surface of the two seat bodies is parallel to the rotation axis of the connection seat 20.

[0063] In some embodiments, the clamping assembly further includes an elastic member 35, which is compressed and abutted between the clamping member 31 and the connecting seat 20. Specifically, when the pressing member 32 is pressed down, the clamping member 31 squeezes the elastic member 35, so that the elastic member is compressed and deformed, and when the pressing member 32 is released, the clamping member 31 can be driven to move in a direction away from the plug-in cavity 201 under the elastic action of the elastic member 35. That is, when the plug-in portion 421 is plugged into the plug-in cavity 201 and the clamping end 311 of the clamping member 31 is inserted into the clamping hole 426, the clamping hook can be clamped in the buckling portion 427 under the action of the elastic member 35. When the rotary curling rod 40 needs to be disassembled, the pressing member 32 is pressed down to make the clamping member 31 move in a direction close to the plug-in cavity 201. When the clamping hook is separated from the buckling portion 427, the plug-in portion 421 can be pulled out from the plug-in cavity 201, so that the rotary curling rod 40 is disassembled. By providing an elastic member 35 between the clamping member 31 and the pressing member 32, the structure of the clamping member 31 can be simplified, making the clamping structure relatively simple. Of course, in other embodiments, the clamping member 31 itself is provided as a spring structure to achieve the reset of the clamping member 31.

[0064] In some embodiments, the clamping member 31 is provided with a limiting groove 315, and one end of the elastic member 35 abuts against the limiting groove 315. In this way, the limiting groove 315 can limit the displacement of the elastic member 35 relative to the clamping member 31, so that the elastic member 35 is stably installed and the reliability of the clamping structure is improved.

[0065] In some embodiments, the connection base 20 is provided with a limiting protrusion 22, the elastic member 35 is a compression spring, and one end of the elastic member 35 away from the pressing member 32 is sleeved on the limiting protrusion 22. In this way, the limiting protrusion 22 can limit the displacement of the elastic member 35 relative to the connection base 20, so that the elastic member 35 is stably installed and the reliability of the clamping structure is improved. Moreover, when a compression spring is used as the elastic member 35, the structural strength of the elastic member 35 can be high and more reliable. Of course, in other embodiments, the elastic member 35 can also be a spring sheet or a rubber block, etc.

[0066] In some embodiments, the clamping member 31 further has a rotating end 312, which is opposite to the clamping end 311, and the rotating end 312 is rotatably installed in the installation cavity 331, and the pressing member 32 abuts between the rotating end 312 and the clamping end 311. It is equivalent to that the clamping end 311 is swingably installed in the installation cavity 331 with the rotating end 312 as the axis. Compared with the way that the clamping member 31 is slidably installed in the installation cavity 331 along the hole depth direction of the clearance hole 332 (the direction perpendicular to the rotation axis of the connecting seat 20), in this solution, the rotating end 312 will basically not move along the hole depth direction of the clearance hole 332, and the movable space required by the rotating end 312 in the installation cavity 331 is small, which can reduce the space occupied by the clamping member 31 in the installation cavity 331, thereby improving the compactness of the structure of the connecting seat 20 and the clamping structure, which is conducive to reducing the size of the rotary curling iron 40 and making it easier for users to hold and use.

[0067] In some embodiments, a rotating shaft 71 is provided in the installation cavity 331, and a rotating groove 314 is provided at the rotating end 312. Both ends of the rotating groove 314 are through-set along the axial direction of the rotating shaft 71. The rotating end 312 is rotatably mounted on the rotating shaft 71 through the rotating groove 314, and the notch of the rotating groove 314 is located on the side of the rotating end 312 away from the connecting seat 20. Specifically, the outer peripheral surface of the rotating part is substantially a circumferential surface, and the rotating end 312 is substantially hook-shaped. During installation, the rotating shaft 71 can be first installed in the installation cavity 331, and then the rotating end 312 can be inserted between the rotating shaft 71 and the connecting seat 20 from the notch of the rotating groove 314. In this way, the troublesome positioning of the shaft hole on the rotating part and the rotating shaft 71 can be avoided, and the installation of the clamping member 31 can be facilitated.

[0068] In some embodiments, an arc-shaped groove 202 is provided at a position of the connecting base 20 corresponding to the rotating shaft 71, and the rotating end 312 is rotatably mounted in the arc-shaped groove 202. With this arrangement, the rotating end 312 can rotate relatively smoothly in the arc-shaped groove 202, enabling the clamping member 31 to rotate smoothly and reliably, and reducing the risk of failure of the clamping member 31.

[0069] In some embodiments, the pressing member 32 is provided with a limiting buckle 321, and the clamping member 31 is provided with a limiting card hole 313. The limiting buckle 321 is movably clamped in the limiting card hole 313. Specifically, the length of the limiting buckle 321 is greater than the depth of the limiting card hole 313. With this arrangement, while the pressing member 32 and the clamping member 31 can be better constrained together, it can avoid the situation where the rotation of the clamping member 31 is restricted due to the rigid connection between the pressing member 32 and the clamping member 31.

[0070] In some embodiments, one of the outer side surface of the plugging portion 421 and the cavity wall of the plugging cavity 201 is provided with an anti-fooling rib 23, and the other is provided with an anti-fooling groove 428. When the plugging portion 421 is plugged into the plugging cavity 201, the anti-fooling rib 23 is plugged into the anti-fooling groove 428. This can facilitate the user to install the rotary hair curler 40 and avoid the situation where the user installs it incorrectly.

[0071] In some embodiments, the cavity wall of the plugging cavity 201 has a first arc surface 24 and a first plane 25, and the first arc surface 24 and the first plane 25 are distributed along the rotation direction of the connecting base 20. The outer peripheral side of the plugging portion 421 is provided with a second arc surface 423 and a second plane 424. When the plugging portion 421 is plugged into the plugging cavity 201, the first plane 25 and the second plane 424 are opposite to each other, and the first arc surface 24 and the second arc surface 423 are opposite to each other. Specifically, the cavity wall of the plugging cavity 201 has two opposite first arc surfaces 24 and two opposite first planes 25, and the two first arc surfaces 24 and the two first planes 25 are alternately distributed along the rotation direction of the connecting base 20. Similarly, the outer peripheral side of the plugging portion 421 is provided with two opposite second arc surfaces 423 and two opposite second planes 424, and the two second arc surfaces 423 and the two second planes 424 are alternately distributed along the rotation direction of the connecting base 20. When the plugging portion 421 is plugged into the plugging cavity 201, the two first planes 25 and the two second planes 424 correspond one by one, and the two first arc surfaces 24 and the two second arc surfaces 423 correspond one by one. This can prevent the plugging portion 421 from rotating relative to the connecting base 20 and improve the installation stability of the rotary hair curler 40. Of course, in other embodiments, the cavity wall of the plugging cavity 201 may also have only one first arc surface 24 and one first plane 25.

[0072] In some embodiments, the snap - fitting member 31 is located between the first plane 25 and the annular housing 33. In this way, the space between the first plane 25 and the annular housing 33 can be utilized to arrange the snap - fitting member 31, improving the structural compactness of the connection base 20 and the snap - fitting structure, which is beneficial to reducing the size of the rotary hair curler and facilitating the user's grip and use.

[0073] In some embodiments, the insertion part 421 is provided with a first insertion hole 422, the insertion cavity 201 is provided with an insertion protrusion 21, the second wiring assembly is arranged in the first insertion hole 422, and the first wiring assembly is arranged on the insertion protrusion 21. When the insertion part 421 is inserted into the insertion cavity 201, the insertion protrusion 21 is inserted into the first insertion hole 422, and the second wiring assembly and the first wiring assembly are correspondingly connected. With this arrangement, when the insertion part 421 is inserted into the insertion cavity 201, the length of the gap between the second wiring assembly and the outer side surface of the rotary hair curler can be increased, which is equivalent to increasing the path for water to enter the second wiring assembly and the first wiring assembly from the outside of the rotary hair curler, reducing the risk of water ingress at the second wiring assembly and the first wiring assembly, and improving the waterproof effect of the rotary hair curler during use.

[0074] In some embodiments, the insertion protrusion 21 is provided with a plurality of second insertion holes 211, the second wiring assembly includes a plurality of conductive posts 51 arranged in the first insertion hole 422, and the first wiring assembly includes conductive members 15 arranged in the second insertion holes 211. When the insertion part 421 is inserted into the insertion cavity 201, the insertion protrusion 21 is inserted into the first insertion hole 422, and each conductive post 51 is correspondingly inserted into one insertion hole and contacts the conductive member 15. With this arrangement, the plurality of conductive members 15 can be separated from each other, increasing the path between each conductive member 15. That is, in the case where the rotary hair curler 40 is removed, even if a small amount of water drops into the insertion cavity 201, it is difficult to simultaneously contact two conductive members 15, that is, it is difficult for a short - circuit to occur between two adjacent conductive members 15, greatly reducing the risk of short - circuit due to water ingress in the first wiring assembly. Of course, in other embodiments, the first wiring assembly includes a plurality of conductive contact plates arranged on the end face of the insertion protrusion 21, and the plurality of conductive contact plates correspond to the plurality of conductive posts 51 one by one.

[0075] In some embodiments, the rotary hair curler includes a plurality of rotary hair curlers 40, and the plurality of rotary hair curlers 40 are alternatively installed at the connection end. Specifically, each of the plurality of rotary hair curlers 40 includes a heating rod 41 and a fixing base 42, and the sizes and / or shapes of the heating rods 41 of the plurality of rotary hair curlers 40 are different, that is, the sizes and / or shapes of the heating rods 41 of the plurality of rotary hair curlers 40 are not the same. This facilitates the user to select a suitable rotary hair curler 40 for curling according to the curling needs, meeting personalized requirements.

[0076] In some embodiments, the handle 10 further includes a drive motor 16 and an electronic control device disposed within the housing 11. The electronic control device is electrically connected to the drive motor 16. The connecting seat 20 is rotatably mounted within the housing 11 and is connected to the output shaft of the drive motor 16. In this way, when curling hair, the drive motor 16 can drive the connecting seat 20 and the rotary curling iron 40 to rotate together for the curling operation, which greatly facilitates the user's curling operation.

[0077] In some embodiments, the electronic control device further includes a forward rotation button 17 and a reverse rotation button 18 disposed on the housing 11. Both the forward rotation button 17 and the reverse rotation button 18 are electrically connected to the circuit board 12. The forward rotation button 17 and the reverse rotation button 18 are both disposed at one end of the housing 11 close to the rotary curling iron 40 for the convenience of the user to press.

[0078] In some embodiments, the electronic control device further includes a power button 19 disposed on the housing 11. The power button 19 is electrically connected to the circuit board 12. The power button 19 is disposed at one end of the housing 11 away from the rotary curling iron 40, so as to avoid the risk that the user accidentally touches the power button 19 during the curling process.

[0079] In some embodiments, the connecting seat 20 has a connecting shaft 26 extending towards the drive motor 16. An insulating mounting structure 60 is sleeved outside the connecting shaft 26. The insulating mounting structure 60 is connected to the output shaft of the drive motor 16. A plurality of mounting ring grooves 613 are provided on the circumferential side of the insulating mounting structure 60. The plurality of mounting ring grooves 613 are spaced apart along the axial direction of the connecting shaft 26. The fixing seat 42 is provided with a first wiring assembly. The electronic control device includes a circuit board 12, a second wiring assembly, a plurality of conductive rings 13 and a plurality of conductive sheets 14. The circuit board 12 is fixed within the housing 11. Each conductive ring 13 is correspondingly mounted in one mounting ring groove 613 and is electrically connected to the second wiring assembly. The plurality of conductive sheets 14 are all mounted on the circuit board 12, and each conductive sheet 14 correspondingly abuts against the outer side surface of one conductive ring 13.

[0080] Specifically, the insulating mounting structure 60 and the connecting shaft 26 are relatively fixed in the rotation direction of the connecting seat 20, that is, the insulating mounting structure 60 and the connecting seat 20 rotate together under the drive of the drive motor 16. The circuit board 12 is fixed relative to the housing 11. When the drive motor 16 drives the insulating mounting structure 60 and the connecting seat 20 to rotate, the conductive ring 13 in the mounting ring groove 613 rotates together with the insulating mounting structure 60, and the conductive ring 13 rotates relative to the conductive sheet 14. During the process of the conductive ring 13 rotating relative to the conductive sheet 14, the conductive sheet 14 abuts against the outer peripheral surface of the conductive ring 13. In this way, while the connecting seat 20 is rotated, the conductive sheet 14 can be better electrically connected to the conductive ring 13.

[0081] In some embodiments, the conductive sheet 14 includes connection pins 141 and two contact elastic pieces 142 respectively disposed on opposite sides of the connection pins 141. The two contact elastic pieces 142 are respectively disposed on opposite sides of the conductive ring 13 and elastically abut against the outer peripheral surface of the conductive ring 13, that is, the two contact elastic pieces 142 have elastic deformation in a direction. This can ensure sufficient contact between the conductive sheet 14 and the conductive ring 13. Moreover, even if one of the contact elastic pieces 142 is temporarily separated from the conductive ring 13 during the rotation of the connection base 20, the other contact elastic piece 142 can still contact the conductive ring 13, reducing the risk of poor contact between the conductive sheet 14 and the conductive ring 13.

[0082] In some embodiments, the insulating mounting structure 60 includes a plurality of mounting rings 61. Each mounting ring 61 includes a first section 611 and a second section 612 connected to each other. The outer diameter of the first section 611 is smaller than the outer diameter of the second section 612, so as to form a mounting ring groove 613 on the outer side of the first section 611. The plurality of mounting rings 61 are sequentially distributed in the direction from the drive motor 16 to the connection base 20, and the first section 611 of each mounting ring 61 is located on the side of its second section 612 away from the drive motor 16. The conductive ring 13 is in a continuous ring shape (closed loop). This can avoid gaps in the conductive ring 13, that is, during the process of the conductive ring 13 rotating one week, the conductive sheet 14 can be in sufficient contact with the conductive ring 13, reducing the risk of poor contact between the conductive sheet 14 and the conductive ring 13.

[0083] The above are only the preferred embodiments of the present application, and do not limit the patent scope of the present application. Any equivalent structural transformation made under the inventive concept of the present application by using the content of the specification and drawings of the present application, or directly / indirectly applied in other related technical fields, is included in the patent protection scope of the present application.

Claims

1. A rotary hair curler, characterized in that, it comprises: a handle including a housing and a drive motor disposed within the housing, the housing having an open end; an electronic control device including a circuit board and a plurality of conductive sheets, the plurality of conductive sheets being electrically connected to the circuit board, and the circuit board being electrically connected to the drive motor; a connecting seat rotatably mounted within the housing and connected to the drive motor, a plurality of conductive rings being sleeved on the connecting seat, the plurality of conductive rings being spaced apart along the extension direction of the rotation axis of the connecting seat, each conductive sheet correspondingly abutting against the outer peripheral surface of one of the conductive rings, and the connecting seat having a connecting end exposed outside from the open end; and a rotary hair curling rod including a heating rod and a fixing seat connected to one end of the heating rod, the fixing seat being detachably connected to the connecting end, and a heating component within the heating rod being electrically connected to the plurality of conductive rings through a first wiring component and a second wiring component.

2. The rotary hair curler according to claim 1, characterized in that, the connecting seat has a connecting shaft extending towards the drive motor, an insulating mounting structure being sleeved outside the connecting shaft, the insulating mounting structure being connected to the output shaft of the drive motor, a plurality of mounting ring grooves being provided on the peripheral side of the insulating mounting structure, the plurality of mounting ring grooves being spaced apart along the axial direction of the connecting shaft, and each conductive ring being correspondingly mounted within one of the mounting ring grooves.

3. The rotary hair curler according to claim 2, characterized in that, the conductive sheet includes a connecting leg and two contact elastic pieces respectively disposed on opposite sides of the connecting leg, the two contact elastic pieces being respectively disposed on opposite sides of the conductive ring and elastically abutting against the outer peripheral surface of the conductive ring.

4. The rotary hair curler according to claim 2, characterized in that, the insulating mounting structure has a plurality of mounting rings, each mounting ring including a first section and a second section connected to each other, the outer diameter of the first section being smaller than the outer diameter of the second section so as to form a mounting ring groove outside the first section, the plurality of mounting rings being sequentially distributed in the extension direction of the rotation axis of the connecting seat, and the first section of each mounting ring being located on the side of its second section away from the drive motor.

5. The rotary hair curler according to claim 1, characterized in that, The connecting end is provided with a plug-in cavity, and the second wiring assembly is provided in the plug-in cavity, and the second wiring assembly is correspondingly connected to the plurality of conductive rings; the rotary curling iron also includes a clamping assembly, and the clamping assembly includes a clamping piece and a pressing piece, and the clamping piece can be movably installed on the connecting end, and the clamping end of the clamping piece is located in the plug-in cavity, and the pressing piece abuts against a side of the clamping piece away from the plug-in cavity; the fixing seat is provided with a plug-in portion and a buckling portion located on the outer peripheral side of the plug-in portion, and the buckling portion is provided with a clamping hole, and the plug-in portion is provided with a first wiring assembly, and the first wiring assembly is electrically connected to the heating assembly in the rotary curling iron, and when the plug-in portion is plugged into the plug-in cavity through the plug-in portion, the buckling portion is located in the plug-in cavity, the clamping end of the clamping piece is clamped in the clamping hole, and the second wiring assembly is electrically connected to the first wiring assembly.

6. The rotary hair curler according to claim 5, It is characterized in that The rotary curling iron comprises two clamping assemblies, which are respectively arranged at two opposite sides of the connecting end, and the rotary curling iron is provided with the buckling part corresponding to each clamping assembly.

7. The rotary curling iron according to claim 5, It is characterized in that An annular outer shell is sleeved on the outer side of the connecting end, and a mounting cavity is formed between the annular outer shell and the outer circumferential surface of the connecting end. The annular outer shell is provided with a clearance hole connected to the mounting cavity. The clamping member can be movably installed in the mounting cavity. The pressing member abuts against a side of the clamping member away from the connecting seat and is exposed to the outside through the clearance hole. The connecting seat is provided with a clearance opening connected to the plug-in cavity and the mounting cavity. The clamping end of the clamping member extends into the plug-in cavity through the clearance opening. The clamping assembly further comprises an elastic member, and the elastic member is compressed and abutted between the clamping member and the connecting seat.

8. The rotary hair curler according to claim 7, It is characterized in that The clamping member also has a rotating end, which is opposite to the clamping end. The rotating end is rotatably installed in the installation cavity, and the pressing member abuts between the rotating end and the clamping end.

9. The rotary curling iron according to claim 5, It is characterized in that The pressing member is provided with a limit buckle, the clamping member is provided with a limit clamping hole, and the limit buckle can be movably clamped in the limit clamping hole; and / or, One of the outer side surface of the plug-in part and the cavity wall of the plug-in cavity is provided with an anti-foolproof convex rib, and the other is provided with an anti-foolproof groove. When the plug-in part is plugged into the plug-in cavity, the anti-foolproof convex rib is plugged into the anti-foolproof groove.

10. The rotary hair curler according to claim 1, It is characterized in that The rotary curling device comprises a plurality of rotary curling rods, and the plurality of rotary curling rods are selectively mounted on the connecting end.

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