An adjustable curling iron's adjustment mechanism

By employing precision gear transmission and axial limiting design, the problem of poor adjustment accuracy and stability of curling irons has been solved, achieving high-precision adjustment of the curling area, improving user experience and device durability.

CN224268539UActive Publication Date: 2026-05-26深圳玖柒创欣科技有限公司
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
深圳玖柒创欣科技有限公司
Filing Date
2025-04-14
Publication Date
2026-05-26

AI Technical Summary

Technical Problem

Existing curling irons have low adjustment precision and poor stability, making it difficult to achieve precise adjustments according to different hairstyles and individual needs, thus affecting the user experience.

Method used

Employing precision gear transmission and axial limiting design, the driven gear is controlled to rotate by rotating a paddle meshing with the gear. Combined with the cooperation of the limiting protrusion and groove, the precise positioning and smooth movement of the drive shaft and heating plate are ensured, achieving high-precision adjustment of the curling area.

Benefits of technology

It improves the adjustment precision and stability of the curling iron, reduces wobbling and loosening, ensures precise control of the curling area, and enhances the user experience and device durability.

✦ Generated by Eureka AI based on patent content.

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Abstract

This utility model relates to the field of curling irons, and more particularly to an adjustment device for an adjustable curling iron, including an adjustment part comprising a rotating paddle, a first gear and a second gear, and a driven gear; and a rotating part comprising a positioning plastic, heating wires, a drive shaft, and a support shaft. This utility model achieves high precision and stability in adjusting the curling area of ​​the curling iron through precise gear transmission and axial limiting design. The rotating paddle, through meshing with the first and second gears, can precisely control the rotation angle of the driven gear, thereby driving the coordinated movement of the drive shaft. The first limiting protrusion passes through the first limiting groove and the moving groove, ensuring the movement of the positioning plastic with the heating wire attached when the drive shaft operates, ensuring precise positioning and smooth movement of the rotating parts, effectively preventing the curling iron from shaking and loosening during use, and allowing for arbitrary adjustment of the size of the curling area formed by each heating wire, improving the accuracy of the curling iron and the user experience.
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Description

Technical Field

[0001] This utility model relates to the field of curling irons, and more particularly to an adjustment device for an adjustable curling iron. Background Technology

[0002] With the continuous development of hair styling technology and the increasing pursuit of personal image, curling has become an important means for contemporary people to create fashionable hairstyles. Traditional curling tools have many shortcomings, such as imprecise adjustment, inconvenience of use, and limited curling effects, which seriously restrict the user's hair styling experience. Most curling irons on the market currently use a fixed angle design, which cannot flexibly adjust the curling area according to different hairstyles and individual needs, making it difficult for users to achieve the desired styling results.

[0003] Existing curling irons that can adjust hair curls use different attachments for adjustment, resulting in low adjustment accuracy and poor stability. Utility Model Content

[0004] Therefore, this utility model provides an adjustable curling iron adjustment device to overcome the problems of poor adjustment accuracy and stability of existing curling irons.

[0005] To achieve the above objectives, this utility model provides an adjustable device for an adjustable curling iron, comprising:

[0006] The adjustment part includes a rotating paddle, a driven gear, a first gear and a second gear. The inner peripheral wall of the rotating paddle is provided with a gear ring that meshes with the second gear. The second gear is fixed to the first gear, and the first gear meshes with the driven gear.

[0007] The rotating part includes a positioning plastic, a heating element, a drive shaft, and a support shaft;

[0008] The drive shaft is fixed to the driven gear, its end face is provided with positioning plastic and assembled and fixed with the drive shaft, and its outer peripheral surface is provided with heating elements.

[0009] The drive shaft is provided with a moving groove, the support shaft is provided with a first limiting groove, and the positioning plastic is provided with a columnar first limiting protrusion along its axial direction. The first limiting protrusion passes through the first limiting groove and the moving groove in sequence.

[0010] Furthermore, the positioning plastic is provided with the first limiting protrusion, a third limiting protrusion is provided on one side of the first limiting protrusion, and a second limiting protrusion is provided on the other side.

[0011] Furthermore, a third limiting groove is provided on one side of the first limiting groove.

[0012] Furthermore, the third limiting protrusion is embedded in the third limiting groove.

[0013] Furthermore, a curling iron head is provided on one side of the second limiting protrusion.

[0014] Furthermore, a fourth limiting protrusion is provided on one side of the second limiting protrusion, and a second limiting groove and a fourth limiting groove are respectively provided at the corresponding positions of the curling iron head and the second limiting protrusion and the fourth limiting protrusion.

[0015] Furthermore, a positioning hole is provided at the center of the curling iron head.

[0016] Furthermore, the drive shaft and the support shaft are engaged in the positioning hole.

[0017] Furthermore, by setting a positioning hole in the center of the curling iron head and achieving a snap-fit ​​connection between the drive shaft and the support shaft in the positioning hole, precise alignment between the drive shaft and the support shaft can be ensured, and axial sliding and radial wobbling can be effectively prevented, maintaining structural stability.

[0018] Furthermore, several positioning grooves are provided below the support shaft.

[0019] Furthermore, a ball bearing is provided at the position corresponding to the positioning groove on the drive shaft.

[0020] Compared with the prior art, the beneficial effects of this utility model are that, through precise gear transmission and axial limiting design, high precision and stability of the curling area adjustment of the curling iron are achieved. The rotating paddle, through meshing with the first gear and the second gear, can precisely control the rotation angle of the driven gear, thereby driving the coordinated movement of the drive shaft. The first limiting protrusion passes through the first limiting groove and the moving groove, ensuring the movement of the positioning plastic with heating elements attached when the drive shaft is running, ensuring the precise positioning and smooth movement of the rotating parts, effectively avoiding shaking and loosening of the curling iron during use, and allowing for arbitrary adjustment of the size of the curling area formed by each heating element, thus improving the accuracy of the curling iron and the user experience.

[0021] Furthermore, the setting of the third and fourth limiting protrusions can further restrict the movement trajectory of the component based on the first and second limiting protrusions, reduce the positional deviation that may occur due to external vibration or during use, ensure the accuracy and reliability of the curling iron when adjusted at different angles and positions, and optimize the force distribution, thereby extending the service life of the device and improving the durability of the overall structure.

[0022] Furthermore, the third limiting groove, which is symmetrically arranged on both sides of the first limiting groove, can distribute the constraint force more evenly, restrict the radial movement of the component, effectively reduce the eccentricity and shaking of the component during the movement, ensure that the curling iron adjustment device always maintains high-precision position control under different working conditions, and improve the reliability of the overall mechanism.

[0023] Furthermore, the precise engagement of the third limiting protrusion and the third limiting groove can effectively limit the movement of the component in the radial and axial directions, ensuring that the curling iron adjustment device maintains precise position control under different working conditions, reducing positional deviations that may occur due to external vibrations or during use, and enhancing the accuracy of adjustment.

[0024] Furthermore, the curling iron head fully controls the movement trajectory of the second limit protrusion, effectively reducing the shaking and eccentricity of the components during movement, and ensuring that the curling iron adjustment device always maintains high-precision position control under different working conditions.

[0025] Furthermore, by setting a limiting groove on the curling iron head that matches the second and fourth limiting protrusions, more precise and stable component position control can be achieved, effectively reducing positional deviations that may occur due to external vibrations or during use, and ensuring that the components can maintain a smooth and accurate movement trajectory under different working conditions.

[0026] Furthermore, by setting a positioning hole in the center of the curling iron head and achieving a snap-fit ​​connection between the drive shaft and the support shaft in the positioning hole, precise alignment between the drive shaft and the support shaft can be ensured, and axial sliding and radial wobbling can be effectively prevented, maintaining structural stability.

[0027] Furthermore, by using the positioning groove below the support shaft and the corresponding ball bearing design at the drive shaft, the ball bearing moves to different grooves during the adjustment process, further improving the restriction on the movement of the positioning plastic and enhancing the stability and accuracy of the device adjustment. Attached Figure Description

[0028] Figure 1 This is a schematic diagram of the overall structure of the adjustment device of the adjustable curling iron according to an embodiment of the present invention;

[0029] Figure 2 This is a bottom view of the adjustment device of the adjustable curling iron according to an embodiment of the present invention;

[0030] Figure 3 This is a top view of the adjustment device of the adjustable curling iron according to an embodiment of the present invention;

[0031] Figure 4 This is a schematic diagram of the support shaft and the ball bearing in an embodiment of the present invention;

[0032] In the diagram: 1-Rotating paddle, 2-Driven gear, 3-First gear, 4-Second gear, 5-Gear teeth, 6-Positioning plastic, 7-Heating element, 8-Drive shaft, 9-Support shaft, 10-Moving groove, 11-First limiting groove, 12-First limiting protrusion, 13-Second limiting protrusion, 14-Third limiting protrusion, 15-Fourth limiting protrusion, 16-Third limiting groove, 17-Curling iron head, 18-Second limiting groove, 19-Fourth limiting groove, 20-Positioning hole, 21-Positioning groove, 22-Ball. Detailed Implementation

[0033] To make the objectives and advantages of this utility model clearer, the utility model will be further described below with reference to the embodiments; it should be understood that the specific embodiments described herein are only for explaining this utility model and are not intended to limit this utility model.

[0034] Preferred embodiments of the present invention will now be described with reference to the accompanying drawings. Those skilled in the art should understand that these embodiments are merely illustrative of the technical principles of the present invention and are not intended to limit the scope of protection of the present invention.

[0035] It should be noted that in the description of this utility model, the terms "upper", "lower", "left", "right", "inner", "outer", etc., indicating the direction or positional relationship are based on the direction or positional relationship shown in the drawings. This is only for the convenience of description and does not indicate or imply that the device or element must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, it should not be construed as a limitation of this utility model.

[0036] Furthermore, it should be noted that, in the description of this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0037] Please see Figure 1 ,like Figure 1 The diagram shown is a schematic representation of the overall structure of the adjustment device of the adjustable curling iron according to an embodiment of this utility model.

[0038] Specifically, embodiments of this application provide an adjustment device for an adjustable curling iron, comprising:

[0039] The adjustment unit includes a rotating paddle 1, a gear set and a driven gear 2. The gear set includes a first gear 3 and a second gear 4. The inner side of the rotating paddle 1 is provided with gear teeth 5 that mesh with the second gear. The driven gear 2 meshes with the first gear 3.

[0040] The rotating part includes a positioning plastic 6, a heating element 7, a drive shaft 8, and a support shaft 9. The drive shaft 8 passes through the shaft hole of the driven gear 2 and is provided with a moving groove 10. The support shaft 9 is sleeved on the drive shaft 8 and fits against the drive shaft 8. The support shaft 9 is provided with a first limiting groove 11. The positioning plastic 6 is provided with a circular first limiting protrusion 12 and a second limiting protrusion 13 on both sides respectively. The heating element 7 is attached to one side of the positioning plastic 6 and passes through the first limiting protrusion 12. The first limiting protrusion 12 passes through the first limiting groove 11 and the moving groove 10 in sequence.

[0041] Specifically, when the rotating paddle 1 is rotated, the rotating paddle 1 drives the first gear and the second gear to rotate, which in turn drives the driven gear 2 to rotate. The drive shaft 8, which passes through the shaft hole of the driven gear 2, also rotates with the rotation of the driven gear 2, which in turn drives the moving groove 10 provided on the drive shaft 8 to rotate. Since the positioning plastic 6 passes through the first limiting groove 11 and the moving groove 10 in sequence, during the rotation of the moving groove 10, the positioning plastic 6 passing through the moving groove 10 will also move in a fixed direction under the joint restriction of the moving groove 10 and the first limiting groove 11. As a result, the size of the curling area formed by the heating plates 7 attached to each positioning plastic 6 will also be adjusted accordingly.

[0042] Specifically, through precise gear transmission and axial limiting design, high precision and stability of the curling area adjustment of the curling iron are achieved. The rotating paddle 1, through meshing with the first gear and the second gear, can precisely control the rotation angle of the driven gear 2, thereby driving the coordinated movement of the drive shaft 8. The first limiting protrusion 12 passes through the first limiting groove 11 and the moving groove 10, ensuring the movement of the positioning plastic 6 with the heating plate 7 attached when the drive shaft 8 is running. This ensures the precise positioning and smooth movement of the rotating parts, effectively preventing the curling iron from shaking and loosening during use, and allowing for arbitrary adjustment of the size of the curling area formed by each heating plate 7, thereby improving the accuracy of the curling iron and the user experience.

[0043] Please see Figure 2 , Figure 3 ,like Figure 2 , Figure 3 The figures shown are, respectively, a bottom view of the adjustment device of the adjustable curling iron according to an embodiment of the present invention and a top view of the adjustment device of the adjustable curling iron according to an embodiment of the present invention.

[0044] Specifically, a third limiting protrusion 14 and a fourth limiting protrusion 15 are respectively provided on both sides of the first limiting protrusion 12 and the second limiting protrusion 13.

[0045] Specifically, the setting of the third limiting protrusion 14 and the fourth limiting protrusion 15 can further restrict the movement trajectory of the component based on the first limiting protrusion 12 and the second limiting protrusion 13, reduce the positional deviation that may occur due to external vibration or during use, ensure the accuracy and reliability of the curling iron when adjusted at different angles and positions, and optimize the force distribution, thereby extending the service life of the device and improving the durability of the overall structure.

[0046] Specifically, a third limiting groove 16 is provided on both sides of the first limiting groove 11.

[0047] Specifically, the third limiting groove 16, which is symmetrically arranged on both sides of the first limiting groove 11, can distribute the constraint force more evenly, limit the radial movement of the component, effectively reduce the eccentricity and shaking of the component during the movement, ensure that the curling iron adjustment device always maintains high-precision position control under different working conditions, and improve the reliability of the overall mechanism.

[0048] Specifically, the third limiting protrusion 14 is embedded in the third limiting groove 16.

[0049] Specifically, the precise engagement of the third limiting protrusion 14 and the third limiting groove 16 can effectively limit the movement of the component in the radial and axial directions, ensuring that the curling iron adjustment device maintains precise position control under different working conditions, reducing positional deviations that may occur due to external vibrations or during use, and enhancing the accuracy of adjustment.

[0050] Specifically, a curling iron head 17 is provided on one side of the second limiting protrusion 13.

[0051] Specifically, the curling iron head 17 fully controls the movement trajectory of the second limit protrusion 13, effectively reducing the shaking and eccentricity of the components during movement, and ensuring that the curling iron adjustment device always maintains high-precision position control under different working conditions.

[0052] Specifically, the curling iron head 17 is provided with a second limiting groove 18 and a fourth limiting groove 19 at the corresponding positions of the second limiting protrusion 13 and the fourth limiting protrusion 15, respectively.

[0053] Specifically, by setting a limiting groove on the curling iron head 17 that matches the second limiting protrusion 13 and the fourth limiting protrusion 15, more precise and stable component position control can be achieved, effectively reducing position deviations that may occur due to external vibrations or during use, and ensuring that the component can maintain a smooth and accurate movement trajectory under different working conditions.

[0054] Specifically, the curling iron head 17 has a positioning hole 20 at its center.

[0055] Specifically, the drive shaft 8 and the support shaft 9 are engaged in the positioning hole 20.

[0056] Specifically, the drive shaft 8 and the support shaft 9 are snapped into the positioning hole 20, so that the drive shaft 8 and the support shaft 9 are fixed in the positioning hole and prevent movement during the adjustment process.

[0057] Specifically, by setting a positioning hole 20 in the center of the curling iron head 17 and achieving a snap-fit ​​connection between the drive shaft 8 and the support shaft 9 in the positioning hole 20, the precise alignment between the drive shaft 8 and the support shaft 9 can be ensured, and axial sliding and radial shaking can be effectively prevented, thus maintaining structural stability.

[0058] Please see Figure 4 ,like Figure 4 As shown, it is a structural schematic diagram of the support shaft and the ball in an embodiment of this utility model;

[0059] Specifically, a plurality of positioning grooves 21 are provided below the support shaft 9.

[0060] Specifically, a ball bearing 22 is provided at the position corresponding to the positioning groove 21 on the drive shaft 8.

[0061] Specifically, several positioning grooves 21 are provided below the support shaft 9. During the adjustment and rotation of the drive shaft 8, the ball bearings 22 provided on the drive shaft 8 move in the grooves 21, that is, move from one groove 21 to another groove 21, thereby limiting the degree of adjustment and dividing it into different adjustment levels.

[0062] Specifically, by using the positioning groove 21 below the support shaft 9 and the corresponding ball bearing 22 at the drive shaft 8, the ball bearing 22 can move to different grooves during the adjustment process, further improving the restriction on the movement of the positioning plastic 6 and enhancing the stability and accuracy of the device adjustment.

[0063] The technical solution of this utility model has been described above with reference to the preferred embodiments shown in the accompanying drawings. However, it will be readily understood by those skilled in the art that the protection scope of this utility model is obviously not limited to these specific embodiments. Without departing from the principle of this utility model, those skilled in the art can make equivalent changes or substitutions to the relevant technical features, and the technical solutions after these changes or substitutions will all fall within the protection scope of this utility model.

[0064] The above description is merely a preferred embodiment of this utility model and is not intended to limit the scope of this utility model. Various modifications and variations can be made to this utility model by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. An adjustment device for an adjustable curling iron, characterized in that include: The adjustment part includes a rotating paddle, a driven gear, a first gear and a second gear. The inner peripheral wall of the rotating paddle is provided with a gear ring that meshes with the second gear. The second gear is fixed to the first gear, and the first gear meshes with the driven gear. The rotating part includes a positioning plastic, a heating element, a drive shaft, and a support shaft; The drive shaft is fixed to the driven gear, its end face is provided with positioning plastic and assembled and fixed with the drive shaft, and its outer peripheral surface is provided with heating elements. The drive shaft is provided with a moving groove, the support shaft is provided with a first limiting groove, and the positioning plastic is provided with a columnar first limiting protrusion along its axial direction. The first limiting protrusion passes through the first limiting groove and the moving groove in sequence.

2. An adjustable curling iron adjustment device according to claim 1, wherein, The positioning plastic is provided with the first limiting protrusion, a third limiting protrusion is provided on one side of the first limiting protrusion, and a second limiting protrusion is provided on the other side.

3. An adjustable curling iron adjustment device according to claim 2, wherein, A third limiting groove is provided on one side of the first limiting groove.

4. An adjustable curling iron adjustment device according to claim 3, wherein, The third limiting protrusion is embedded in the third limiting groove.

5. An adjustable curling iron adjustment device according to claim 4, wherein, A curling iron head is provided on one side of the second limiting protrusion.

6. An adjustable curling iron adjustment device according to claim 5, wherein, A fourth limiting protrusion is also provided on one side of the second limiting protrusion, and a second limiting groove and a fourth limiting groove are respectively provided at the corresponding positions of the curling iron head and the second limiting protrusion and the fourth limiting protrusion.

7. An adjustable curling iron adjustment device according to claim 6, wherein, The curling iron head has a positioning hole at its center.

8. The adjustable curling iron adjustment device of claim 1, wherein, The drive shaft and the support shaft are engaged in the positioning hole.

9. The adjustable curling iron adjustment device of claim 1, wherein, Several positioning grooves are provided below the support shaft.

10. The adjusting device for the adjustable curling iron according to claim 9, characterized in that, A ball bearing is provided at the position corresponding to the positioning groove on the drive shaft.